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The Writer's Toolbox Story

Writer’s Toolbox arose out of the university research and teachings of Associate Professor Ian Hunter. Concerned about the writing ability in his own university students in the late 1990s, Dr Hunter began what has cumulated into a 25-year action research project.

Where it Started

An historian by training, Dr Hunter was concerned that any approach to writing instruction should not be based on passing fads, rather, should be anchored in time-proven teaching methods.  Consequently, he surveyed 150-years of writing research in schools and classrooms around the globe to unearth what had worked irrefutably.  The result is Writer's Toolbox.  It is a combination of educational philosophy, cutting-edge technology, and explicit, pragmatic teaching. 

Function and Form

At the foundation of the Writer's Toolbox system is the composition skills approach from 19th and 20th century scholarship, which taught matters of style, form, and structure alongside extended skills in sentencing, paragraphing, grammar, and composition.  Students learn not just the form of the sentence, but its function.  Along the way, they master vital stylistic skills and composition principles that have sat silent for over a century.

The Big Idea

In 2012, a team was established to incorporate these ideas into an interactive online writing tool.  The aim was to build an educational AI that—irrespective of the age of the student or the type of writing submitted—would interact with that student and teach them to be a better writer.  This project was more than just writing; a key objective was to build discovery learning and advances in neuroscience within the AI architecture.

Technology-Driven Research

Hunter and his team already knew technology and education were a good fit.  For over three decades researchers have noted the ability of computer-aided learning (CAL) to improve academic results (Sullivan & Pratt 1996; Yang & Chen 2007; Godwin-Jones 2016; Chun 2019, Wu et al,. 2013).  However, as Ericsson and Haswell (2006) point out, a large proportion of the research projects in computer-aided learning focus on the digital delivery of content, but make no attempt to integrate any aspects of automated guided learning to the system.  

Tried, Tested, Proven

Writer’s Toolbox smashed this glass ceiling.  The AI in Writer's Toolbox provides guided instruction on writing skills from Prep to 12, with an online system that is fully-differentiated to the student’s unique needs.  As the student becomes a stronger and better writer, Writer's Toolbox keeps moving them forward.  It teaches them.

Longitudinal studies have proven the impact of this research and the Writer’s Toolbox system.  In a recent 4-year study of 71 Australian schools and 78,000 students, writing improvement rates were between two and ten times the state of Queensland. 

Going Global One Writer at a Time

In 2011, Dr Hunter left teaching and formed Writer’s Toolbox as an initiative to help schools solve the writing problem.  From a project that commenced in his garage loft, Writer’s Toolbox now has over 60 staff located in offices in Australia and New Zealand, working with around 600 schools across the globe. 

On a daily basis, Writer's Toolbox writing coaches work with schools, while designers, illustrators, content creators, support teams, and programmers are unified in their vision to make education exciting and transform writing outcomes for students and teachers worldwide.

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Release of version 2, with additional features including Freewriter.

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Work commences on Writer’s Toolbox — placed to be the first AI driven educational writing tool.

Writer’s Toolbox launched in Brisbane, Australia on Valentine’s Day.

Daily Writing Tips

Top 10 online tools to help you write the perfect essay.

Writing essays can be tough … and sometimes you need all the help you can get.

The great news is that there are plenty of online tools that can help you write the best essay you can – and I’m going to be running through ten of the best.

Before we get into the list, though, here’s a huge caveat.

DO NOT use websites that write your essay for you.

When I researched this blog post, I found (to my horror) lots of lists of “essay-writing tools” that linked to essay mills as if those were legitimate writing tools. These essay mills are websites that sell essays for $200 – $500 each.

Let’s be very clear: if you pay someone else for an essay and hand it in as your own work, that’s cheating. You could get into serious trouble – maybe even thrown off your course. Plus, you might get horribly ripped off .

None of the tools in this post will help you cheat. All of them will help you write the best essay you can.

Of course, there are times when all the online tools in the world can’t help: when you’re taking your exams. If that’s the case, check out 7 Essay Writing Tips To Ace Your Next Exam to help you.

Here are ten tools that could help you with your next essay. I’ve split them into different categories of tools to help with planning and research, with writing, and with editing.

Tools to Help You Plan and Research Your Essay

Before you start to write an essay, you need to plan it (and probably do some research, unless you’re writing about a topic that you’ve already learned about extensively in lectures or in class). These tools will help you with the planning stage of the writing process .

#1: Essay Map (free), from ReadWriteThink

I’m a big fan of planning in advance – and this tool walks you through the process of planning an essay. You’re a bit limited by the format (three main ideas, each with three subpoints) – but if you’re new to planning, it could be a great place to begin.

You can save your finished map onto the computer, If you prefer to work on paper, you can also print a blank map to fill in.

Tip: This basic structure: introduction, conclusion, and three key points, each with supporting evidence, could work for other forms of writing too – like a blog post or article.

#2: Evernote (free), from Evernote Corporation

Evernote is like a set of online notebooks – where you can keep anything you like, from written notes to photos to videos. I keep all my work-related notes there, plus lots of administrative bits and pieces – it makes it really easy to find what I need.

Because you can login and access it from any computer or device, Evernote could be a great place to keep ideas and rough plans for your upcoming essays. You can search all your notes for a particular word or phrase, so it’s easy to find things that you wrote weeks or even years ago.

Tip: You can save whole webpages into Evernote at the click of a button if you use the Evernote Chrome extension .

#3: JSTOR (paid), from ITHAKA

JSTOR is an online archive of lots of different academic journals and books. Most universities have a paid subscription to it, so you can access it for free using your university credentials.

You can search JSTOR by author, subject (keyword), or title. You can see a screenshot above of the first couple of results for my search for “Samuel Richardson” (my favourite 18 th century novelist).

Tip: If you don’t have access through your institution, you can sill access public domain resources on JSTOR for free, plus up to six articles per month – or you can pay for a “JPASS” for $19.50/month.

Tools to Help You Write Your Essay

Once you’ve got a plan for your essay, and you’ve gathered some useful books or journal articles to reference, it’s time to write. These tools will help you get that first draft down.

#4: Freedom (paid), from Freedom

This app and website blocker lets you block specific websites – great for when you want to focus but keep getting distracted. If you need access to the internet for other tools, that’s no problem: with Freedom, you can block specific sites (like Facebook and Twitter) or apps on your phone. You can also block the whole internet, if you want to.

Once you’re running a Freedom session, if you try to visit a blocked site, it simply won’t show up.

Freedom costs $6.99/month or $29/year: there’s a trial version available so you can give it a go before you buy, and there’s also a money-back guarantee. You can use Freedom on multiple devices at no extra cost.

Tip: If you want a free alternative to Freedom, Cold Turkey is a good option (as is StayFocusd , but that only works on Chrome).

#5: EndNote Basic (free), from Clarivate Analytics

EndNote is one of the best-known reference managing tools and you can use it online for free. You can search online databases / library catalogues (the free version only gives access to ones from the British Library, the Library of Congress, the National Library of Medicine, and PubMed) or you can create a reference manually by filling in a form.

If you have a number of different essays on the go, you might want to organise your references into different groups. Other students can also share their groups of references with you – useful if you want to collaborate with coursemates.

Tip: You can pay for a full version of EndNote (or your university may provide it) if you want to use advanced features, like accessing far more research database and attaching the full text of PDF sources to your reference database.

#6: The Oxford English Dictionary (paid), from Oxford University

If you study literature, linguistics, or any subject where you want an authoritative take on the origin of words, the Oxford English Dictionary is a fantastic tool. You need to login and access it online – which you can usually do through your university or local library.

Otherwise, you can purchase a monthly subscription as an individual – but it’s pretty pricy ($29.95 in the US, or £56+VAT for three months in the UK). So definitely check with your university or local library first, to see if you can access it through them.

Tip: The OED provides a lot more information than a standard dictionary, and entries might look a bit overwhelming at first. You can “Hide all” quotations, which makes them a bit more manageable if you don’t need the quotations or if you’re hunting through a few different words to figure out which one you want!

#7: Google Timer , from Google

It can be really tough to stay focused when you’re writing, even with distracting websites blocked. Sitting down and planning to write for a whole morning or afternoon doesn’t work well for most people – you simply can’t concentrate on an essay for that long at a stretch.

I like to use timers when I’m writing, to keep me focused and to break my writing session into short chunks. Around 30 – 45 minutes works well. (If you’re on a roll, you can always set the timer for another writing burst straightaway). While the timer’s running … you’re writing!

To set a timer in Google, simply search for “set a timer for X minutes” – e.g. “set a timer for 10 minutes”. The timer will appear on the screen and start automatically. WriteToDone has a bunch more tips on time management for writers.

Tools to Help You Edit Your Essay

Once your essay is written, you’re not done … you still need to edit. It’s a very good idea to separate the drafting process from the editing process, and if you’ve done that, your first draft may well be a little rough and ready in places. These tools will all help you get it into shape.

#8: Grammarly (free), from Grammarly

Grammarly uses artificial intelligence to help you with grammar, spelling and style. You can turn it on and use it as you write – which can be very helpful for things like emails – but if you’re writing an essay, you might prefer to draft first then use Grammarly afterwards.

It’s available as a Chrome plugin, and as a download for MS Office, so you can use it online or offline. Grammarly will flag up mistakes (like typos) but it’ll also spot places where you’ve used more words than you need or where you’ve used vague language.

As you can see above, you can click on an underlined work to see Grammarly’s recommendation for fixing it – clicking the “See more in Grammarly” link gives you more details about what’s wrong, helping you to get things right next time.

 #9: Hemingway (free), from Hemingway App

The Hemingway app works in a similar way to Grammarly, though with a focus on style and readability rather than on spotting typos and misused words. It’s named after the American novelist Ernest Hemingway, who was known for his clear, concise writing. You can access the app without logging in, simply by going to the website: copy or type in your chosen text.

It encourages you to avoid overly complex words and sentence structures: don’t feel that you need to change all of these (particularly in an academic essay, where a certain level of complexity is desirable!) – but do check any flagged words or sentences to make sure you’re happy with them, and that you don’t want to switch to a simpler alternative.

Tip: You can download the Hemingway app for PC or Mac, rather than using it online – but it’ll cost you $19.99.

#10: Thesaurus.com (free), from Dictionary.com

Do you ever struggle to find quite the right word? It happens to me a lot: I know what I want to say, but I can’t think of the very best way to say it. Or, I’ll have used a particular word already and I want to avoid using it too often (the principle of elegant variation).

A great way to broaden your vocabulary is to use a thesaurus to look up words with a similar meaning to the not-quite-right one that you’ve already got. Do make sure, of course, that you don’t simply pick a different word that you like the sound of: you want to get the one that precisely conveys your thoughts.

Tip: If you want to find some options for the opposite of a word, Thesaurus.com can do that too – scroll down past the list of synonyms to the antonyms.

What tools do you use to help you write better essays? Have I missed something off the list that you’d highly recommend? Pop a comment below to tell us about it.

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2 thoughts on “Top 10 Online Tools to Help You Write the Perfect Essay”

As someone who reads and grades essays, I can vouch for Grammarly. And, of course dictionaries/thesauruses (thesauri? Petra?) I also regularly point in the direction of DWT, but I am both persnickety AND pernickety.

The unfair thing is (perhaps an oversight), you did not mention DWT—that’s if DWT is an ‘online tool’. (I consider DWT among the best places to find essay writing guidance.)

Similar to Evernote—according to your description of it—is OneNote of Microsoft. I find it very useful on a windows phone, but I do not know whether it works on other operating systems.

Of dictionaries, I find solace with Advanced English Dictionary: “This dictionary is based on WordNet by Princeton University,” which one can download as an app and use, even offline.

Thank you, team DWT.😍

Leave a Comment

How to Write an Essay

Use the links below to jump directly to any section of this guide:

Essay Writing Fundamentals

How to prepare to write an essay, how to edit an essay, how to share and publish your essays, how to get essay writing help, how to find essay writing inspiration, resources for teaching essay writing.

Essays, short prose compositions on a particular theme or topic, are the bread and butter of academic life. You write them in class, for homework, and on standardized tests to show what you know. Unlike other kinds of academic writing (like the research paper) and creative writing (like short stories and poems), essays allow you to develop your original thoughts on a prompt or question. Essays come in many varieties: they can be expository (fleshing out an idea or claim), descriptive, (explaining a person, place, or thing), narrative (relating a personal experience), or persuasive (attempting to win over a reader). This guide is a collection of dozens of links about academic essay writing that we have researched, categorized, and annotated in order to help you improve your essay writing. 

Essays are different from other forms of writing; in turn, there are different kinds of essays. This section contains general resources for getting to know the essay and its variants. These resources introduce and define the essay as a genre, and will teach you what to expect from essay-based assessments.

Purdue OWL Online Writing Lab

One of the most trusted academic writing sites, Purdue OWL provides a concise introduction to the four most common types of academic essays.

"The Essay: History and Definition" (ThoughtCo)

This snappy article from ThoughtCo talks about the origins of the essay and different kinds of essays you might be asked to write. 

"What Is An Essay?" Video Lecture (Coursera)

The University of California at Irvine's free video lecture, available on Coursera, tells  you everything you need to know about the essay.

Wikipedia Article on the "Essay"

Wikipedia's article on the essay is comprehensive, providing both English-language and global perspectives on the essay form. Learn about the essay's history, forms, and styles.

"Understanding College and Academic Writing" (Aims Online Writing Lab)

This list of common academic writing assignments (including types of essay prompts) will help you know what to expect from essay-based assessments.

Before you start writing your essay, you need to figure out who you're writing for (audience), what you're writing about (topic/theme), and what you're going to say (argument and thesis). This section contains links to handouts, chapters, videos and more to help you prepare to write an essay.

How to Identify Your Audience

"Audience" (Univ. of North Carolina Writing Center)

This handout provides questions you can ask yourself to determine the audience for an academic writing assignment. It also suggests strategies for fitting your paper to your intended audience.

"Purpose, Audience, Tone, and Content" (Univ. of Minnesota Libraries)

This extensive book chapter from Writing for Success , available online through Minnesota Libraries Publishing, is followed by exercises to try out your new pre-writing skills.

"Determining Audience" (Aims Online Writing Lab)

This guide from a community college's writing center shows you how to know your audience, and how to incorporate that knowledge in your thesis statement.

"Know Your Audience" ( Paper Rater Blog)

This short blog post uses examples to show how implied audiences for essays differ. It reminds you to think of your instructor as an observer, who will know only the information you pass along.

How to Choose a Theme or Topic

"Research Tutorial: Developing Your Topic" (YouTube)

Take a look at this short video tutorial from the University of North Carolina at Chapel Hill to understand the basics of developing a writing topic.

"How to Choose a Paper Topic" (WikiHow)

This simple, step-by-step guide (with pictures!) walks you through choosing a paper topic. It starts with a detailed description of brainstorming and ends with strategies to refine your broad topic.

"How to Read an Assignment: Moving From Assignment to Topic" (Harvard College Writing Center)

Did your teacher give you a prompt or other instructions? This guide helps you understand the relationship between an essay assignment and your essay's topic.

"Guidelines for Choosing a Topic" (CliffsNotes)

This study guide from CliffsNotes both discusses how to choose a topic and makes a useful distinction between "topic" and "thesis."

How to Come Up with an Argument

"Argument" (Univ. of North Carolina Writing Center)

Not sure what "argument" means in the context of academic writing? This page from the University of North Carolina is a good place to start.

"The Essay Guide: Finding an Argument" (Study Hub)

This handout explains why it's important to have an argument when beginning your essay, and provides tools to help you choose a viable argument.

"Writing a Thesis and Making an Argument" (University of Iowa)

This page from the University of Iowa's Writing Center contains exercises through which you can develop and refine your argument and thesis statement.

"Developing a Thesis" (Harvard College Writing Center)

This page from Harvard's Writing Center collates some helpful dos and don'ts of argumentative writing, from steps in constructing a thesis to avoiding vague and confrontational thesis statements.

"Suggestions for Developing Argumentative Essays" (Berkeley Student Learning Center)

This page offers concrete suggestions for each stage of the essay writing process, from topic selection to drafting and editing. 

How to Outline your Essay

"Outlines" (Univ. of North Carolina at Chapel Hill via YouTube)

This short video tutorial from the University of North Carolina at Chapel Hill shows how to group your ideas into paragraphs or sections to begin the outlining process.

"Essay Outline" (Univ. of Washington Tacoma)

This two-page handout by a university professor simply defines the parts of an essay and then organizes them into an example outline.

"Types of Outlines and Samples" (Purdue OWL Online Writing Lab)

Purdue OWL gives examples of diverse outline strategies on this page, including the alphanumeric, full sentence, and decimal styles. 

"Outlining" (Harvard College Writing Center)

Once you have an argument, according to this handout, there are only three steps in the outline process: generalizing, ordering, and putting it all together. Then you're ready to write!

"Writing Essays" (Plymouth Univ.)

This packet, part of Plymouth University's Learning Development series, contains descriptions and diagrams relating to the outlining process.

"How to Write A Good Argumentative Essay: Logical Structure" (Criticalthinkingtutorials.com via YouTube)

This longer video tutorial gives an overview of how to structure your essay in order to support your argument or thesis. It is part of a longer course on academic writing hosted on Udemy.

Now that you've chosen and refined your topic and created an outline, use these resources to complete the writing process. Most essays contain introductions (which articulate your thesis statement), body paragraphs, and conclusions. Transitions facilitate the flow from one paragraph to the next so that support for your thesis builds throughout the essay. Sources and citations show where you got the evidence to support your thesis, which ensures that you avoid plagiarism. 

How to Write an Introduction

"Introductions" (Univ. of North Carolina Writing Center)

This page identifies the role of the introduction in any successful paper, suggests strategies for writing introductions, and warns against less effective introductions.

"How to Write A Good Introduction" (Michigan State Writing Center)

Beginning with the most common missteps in writing introductions, this guide condenses the essentials of introduction composition into seven points.

"The Introductory Paragraph" (ThoughtCo)

This blog post from academic advisor and college enrollment counselor Grace Fleming focuses on ways to grab your reader's attention at the beginning of your essay.

"Introductions and Conclusions" (Univ. of Toronto)

This guide from the University of Toronto gives advice that applies to writing both introductions and conclusions, including dos and don'ts.

"How to Write Better Essays: No One Does Introductions Properly" ( The Guardian )

This news article interviews UK professors on student essay writing; they point to introductions as the area that needs the most improvement.

How to Write a Thesis Statement

"Writing an Effective Thesis Statement" (YouTube)

This short, simple video tutorial from a college composition instructor at Tulsa Community College explains what a thesis statement is and what it does. 

"Thesis Statement: Four Steps to a Great Essay" (YouTube)

This fantastic tutorial walks you through drafting a thesis, using an essay prompt on Nathaniel Hawthorne's The Scarlet Letter as an example.

"How to Write a Thesis Statement" (WikiHow)

This step-by-step guide (with pictures!) walks you through coming up with, writing, and editing a thesis statement. It invites you think of your statement as a "working thesis" that can change.

"How to Write a Thesis Statement" (Univ. of Indiana Bloomington)

Ask yourself the questions on this page, part of Indiana Bloomington's Writing Tutorial Services, when you're writing and refining your thesis statement.

"Writing Tips: Thesis Statements" (Univ. of Illinois Center for Writing Studies)

This page gives plentiful examples of good to great thesis statements, and offers questions to ask yourself when formulating a thesis statement.

How to Write Body Paragraphs

"Body Paragraph" (Brightstorm)

This module of a free online course introduces you to the components of a body paragraph. These include the topic sentence, information, evidence, and analysis.

"Strong Body Paragraphs" (Washington Univ.)

This handout from Washington's Writing and Research Center offers in-depth descriptions of the parts of a successful body paragraph.

"Guide to Paragraph Structure" (Deakin Univ.)

This handout is notable for color-coding example body paragraphs to help you identify the functions various sentences perform.

"Writing Body Paragraphs" (Univ. of Minnesota Libraries)

The exercises in this section of Writing for Success  will help you practice writing good body paragraphs. It includes guidance on selecting primary support for your thesis.

"The Writing Process—Body Paragraphs" (Aims Online Writing Lab)

The information and exercises on this page will familiarize you with outlining and writing body paragraphs, and includes links to more information on topic sentences and transitions.

"The Five-Paragraph Essay" (ThoughtCo)

This blog post discusses body paragraphs in the context of one of the most common academic essay types in secondary schools.

How to Use Transitions

"Transitions" (Univ. of North Carolina Writing Center)

This page from the University of North Carolina at Chapel Hill explains what a transition is, and how to know if you need to improve your transitions.

"Using Transitions Effectively" (Washington Univ.)

This handout defines transitions, offers tips for using them, and contains a useful list of common transitional words and phrases grouped by function.

"Transitions" (Aims Online Writing Lab)

This page compares paragraphs without transitions to paragraphs with transitions, and in doing so shows how important these connective words and phrases are.

"Transitions in Academic Essays" (Scribbr)

This page lists four techniques that will help you make sure your reader follows your train of thought, including grouping similar information and using transition words.

"Transitions" (El Paso Community College)

This handout shows example transitions within paragraphs for context, and explains how transitions improve your essay's flow and voice.

"Make Your Paragraphs Flow to Improve Writing" (ThoughtCo)

This blog post, another from academic advisor and college enrollment counselor Grace Fleming, talks about transitions and other strategies to improve your essay's overall flow.

"Transition Words" (smartwords.org)

This handy word bank will help you find transition words when you're feeling stuck. It's grouped by the transition's function, whether that is to show agreement, opposition, condition, or consequence.

How to Write a Conclusion

"Parts of An Essay: Conclusions" (Brightstorm)

This module of a free online course explains how to conclude an academic essay. It suggests thinking about the "3Rs": return to hook, restate your thesis, and relate to the reader.

"Essay Conclusions" (Univ. of Maryland University College)

This overview of the academic essay conclusion contains helpful examples and links to further resources for writing good conclusions.

"How to End An Essay" (WikiHow)

This step-by-step guide (with pictures!) by an English Ph.D. walks you through writing a conclusion, from brainstorming to ending with a flourish.

"Ending the Essay: Conclusions" (Harvard College Writing Center)

This page collates useful strategies for writing an effective conclusion, and reminds you to "close the discussion without closing it off" to further conversation.

How to Include Sources and Citations

"Research and Citation Resources" (Purdue OWL Online Writing Lab)

Purdue OWL streamlines information about the three most common referencing styles (MLA, Chicago, and APA) and provides examples of how to cite different resources in each system.

EasyBib: Free Bibliography Generator

This online tool allows you to input information about your source and automatically generate citations in any style. Be sure to select your resource type before clicking the "cite it" button.

CitationMachine

Like EasyBib, this online tool allows you to input information about your source and automatically generate citations in any style. 

Modern Language Association Handbook (MLA)

Here, you'll find the definitive and up-to-date record of MLA referencing rules. Order through the link above, or check to see if your library has a copy.

Chicago Manual of Style

Here, you'll find the definitive and up-to-date record of Chicago referencing rules. You can take a look at the table of contents, then choose to subscribe or start a free trial.

How to Avoid Plagiarism

"What is Plagiarism?" (plagiarism.org)

This nonprofit website contains numerous resources for identifying and avoiding plagiarism, and reminds you that even common activities like copying images from another website to your own site may constitute plagiarism.

"Plagiarism" (University of Oxford)

This interactive page from the University of Oxford helps you check for plagiarism in your work, making it clear how to avoid citing another person's work without full acknowledgement.

"Avoiding Plagiarism" (MIT Comparative Media Studies)

This quick guide explains what plagiarism is, what its consequences are, and how to avoid it. It starts by defining three words—quotation, paraphrase, and summary—that all constitute citation.

"Harvard Guide to Using Sources" (Harvard Extension School)

This comprehensive website from Harvard brings together articles, videos, and handouts about referencing, citation, and plagiarism. 

Grammarly contains tons of helpful grammar and writing resources, including a free tool to automatically scan your essay to check for close affinities to published work. 

Noplag is another popular online tool that automatically scans your essay to check for signs of plagiarism. Simply copy and paste your essay into the box and click "start checking."

Once you've written your essay, you'll want to edit (improve content), proofread (check for spelling and grammar mistakes), and finalize your work until you're ready to hand it in. This section brings together tips and resources for navigating the editing process. 

"Writing a First Draft" (Academic Help)

This is an introduction to the drafting process from the site Academic Help, with tips for getting your ideas on paper before editing begins.

"Editing and Proofreading" (Univ. of North Carolina Writing Center)

This page provides general strategies for revising your writing. They've intentionally left seven errors in the handout, to give you practice in spotting them.

"How to Proofread Effectively" (ThoughtCo)

This article from ThoughtCo, along with those linked at the bottom, help describe common mistakes to check for when proofreading.

"7 Simple Edits That Make Your Writing 100% More Powerful" (SmartBlogger)

This blog post emphasizes the importance of powerful, concise language, and reminds you that even your personal writing heroes create clunky first drafts.

"Editing Tips for Effective Writing" (Univ. of Pennsylvania)

On this page from Penn's International Relations department, you'll find tips for effective prose, errors to watch out for, and reminders about formatting.

"Editing the Essay" (Harvard College Writing Center)

This article, the first of two parts, gives you applicable strategies for the editing process. It suggests reading your essay aloud, removing any jargon, and being unafraid to remove even "dazzling" sentences that don't belong.

"Guide to Editing and Proofreading" (Oxford Learning Institute)

This handout from Oxford covers the basics of editing and proofreading, and reminds you that neither task should be rushed. 

In addition to plagiarism-checkers, Grammarly has a plug-in for your web browser that checks your writing for common mistakes.

After you've prepared, written, and edited your essay, you might want to share it outside the classroom. This section alerts you to print and web opportunities to share your essays with the wider world, from online writing communities and blogs to published journals geared toward young writers.

Sharing Your Essays Online

Go Teen Writers

Go Teen Writers is an online community for writers aged 13 - 19. It was founded by Stephanie Morrill, an author of contemporary young adult novels. 

Tumblr is a blogging website where you can share your writing and interact with other writers online. It's easy to add photos, links, audio, and video components.

Writersky provides an online platform for publishing and reading other youth writers' work. Its current content is mostly devoted to fiction.

Publishing Your Essays Online

This teen literary journal publishes in print, on the web, and (more frequently), on a blog. It is committed to ensuring that "teens see their authentic experience reflected on its pages."

The Matador Review

This youth writing platform celebrates "alternative," unconventional writing. The link above will take you directly to the site's "submissions" page.

Teen Ink has a website, monthly newsprint magazine, and quarterly poetry magazine promoting the work of young writers.

The largest online reading platform, Wattpad enables you to publish your work and read others' work. Its inline commenting feature allows you to share thoughts as you read along.

Publishing Your Essays in Print

Canvas Teen Literary Journal

This quarterly literary magazine is published for young writers by young writers. They accept many kinds of writing, including essays.

The Claremont Review

This biannual international magazine, first published in 1992, publishes poetry, essays, and short stories from writers aged 13 - 19.

Skipping Stones

This young writers magazine, founded in 1988, celebrates themes relating to ecological and cultural diversity. It publishes poems, photos, articles, and stories.

The Telling Room

This nonprofit writing center based in Maine publishes children's work on their website and in book form. The link above directs you to the site's submissions page.

Essay Contests

Scholastic Arts and Writing Awards

This prestigious international writing contest for students in grades 7 - 12 has been committed to "supporting the future of creativity since 1923."

Society of Professional Journalists High School Essay Contest

An annual essay contest on the theme of journalism and media, the Society of Professional Journalists High School Essay Contest awards scholarships up to $1,000.

National YoungArts Foundation

Here, you'll find information on a government-sponsored writing competition for writers aged 15 - 18. The foundation welcomes submissions of creative nonfiction, novels, scripts, poetry, short story and spoken word.

Signet Classics Student Scholarship Essay Contest

With prompts on a different literary work each year, this competition from Signet Classics awards college scholarships up to $1,000.

"The Ultimate Guide to High School Essay Contests" (CollegeVine)

See this handy guide from CollegeVine for a list of more competitions you can enter with your academic essay, from the National Council of Teachers of English Achievement Awards to the National High School Essay Contest by the U.S. Institute of Peace.

Whether you're struggling to write academic essays or you think you're a pro, there are workshops and online tools that can help you become an even better writer. Even the most seasoned writers encounter writer's block, so be proactive and look through our curated list of resources to combat this common frustration.

Online Essay-writing Classes and Workshops

"Getting Started with Essay Writing" (Coursera)

Coursera offers lots of free, high-quality online classes taught by college professors. Here's one example, taught by instructors from the University of California Irvine.

"Writing and English" (Brightstorm)

Brightstorm's free video lectures are easy to navigate by topic. This unit on the parts of an essay features content on the essay hook, thesis, supporting evidence, and more.

"How to Write an Essay" (EdX)

EdX is another open online university course website with several two- to five-week courses on the essay. This one is geared toward English language learners.

Writer's Digest University

This renowned writers' website offers online workshops and interactive tutorials. The courses offered cover everything from how to get started through how to get published.

Writing.com

Signing up for this online writer's community gives you access to helpful resources as well as an international community of writers.

How to Overcome Writer's Block

"Symptoms and Cures for Writer's Block" (Purdue OWL)

Purdue OWL offers a list of signs you might have writer's block, along with ways to overcome it. Consider trying out some "invention strategies" or ways to curb writing anxiety.

"Overcoming Writer's Block: Three Tips" ( The Guardian )

These tips, geared toward academic writing specifically, are practical and effective. The authors advocate setting realistic goals, creating dedicated writing time, and participating in social writing.

"Writing Tips: Strategies for Overcoming Writer's Block" (Univ. of Illinois)

This page from the University of Illinois at Urbana-Champaign's Center for Writing Studies acquaints you with strategies that do and do not work to overcome writer's block.

"Writer's Block" (Univ. of Toronto)

Ask yourself the questions on this page; if the answer is "yes," try out some of the article's strategies. Each question is accompanied by at least two possible solutions.

If you have essays to write but are short on ideas, this section's links to prompts, example student essays, and celebrated essays by professional writers might help. You'll find writing prompts from a variety of sources, student essays to inspire you, and a number of essay writing collections.

Essay Writing Prompts

"50 Argumentative Essay Topics" (ThoughtCo)

Take a look at this list and the others ThoughtCo has curated for different kinds of essays. As the author notes, "a number of these topics are controversial and that's the point."

"401 Prompts for Argumentative Writing" ( New York Times )

This list (and the linked lists to persuasive and narrative writing prompts), besides being impressive in length, is put together by actual high school English teachers.

"SAT Sample Essay Prompts" (College Board)

If you're a student in the U.S., your classroom essay prompts are likely modeled on the prompts in U.S. college entrance exams. Take a look at these official examples from the SAT.

"Popular College Application Essay Topics" (Princeton Review)

This page from the Princeton Review dissects recent Common Application essay topics and discusses strategies for answering them.

Example Student Essays

"501 Writing Prompts" (DePaul Univ.)

This nearly 200-page packet, compiled by the LearningExpress Skill Builder in Focus Writing Team, is stuffed with writing prompts, example essays, and commentary.

"Topics in English" (Kibin)

Kibin is a for-pay essay help website, but its example essays (organized by topic) are available for free. You'll find essays on everything from  A Christmas Carol  to perseverance.

"Student Writing Models" (Thoughtful Learning)

Thoughtful Learning, a website that offers a variety of teaching materials, provides sample student essays on various topics and organizes them by grade level.

"Five-Paragraph Essay" (ThoughtCo)

In this blog post by a former professor of English and rhetoric, ThoughtCo brings together examples of five-paragraph essays and commentary on the form.

The Best Essay Writing Collections

The Best American Essays of the Century by Joyce Carol Oates (Amazon)

This collection of American essays spanning the twentieth century was compiled by award winning author and Princeton professor Joyce Carol Oates.

The Best American Essays 2017 by Leslie Jamison (Amazon)

Leslie Jamison, the celebrated author of essay collection  The Empathy Exams , collects recent, high-profile essays into a single volume.

The Art of the Personal Essay by Phillip Lopate (Amazon)

Documentary writer Phillip Lopate curates this historical overview of the personal essay's development, from the classical era to the present.

The White Album by Joan Didion (Amazon)

This seminal essay collection was authored by one of the most acclaimed personal essayists of all time, American journalist Joan Didion.

Consider the Lobster by David Foster Wallace (Amazon)

Read this famous essay collection by David Foster Wallace, who is known for his experimentation with the essay form. He pushed the boundaries of personal essay, reportage, and political polemic.

"50 Successful Harvard Application Essays" (Staff of the The Harvard Crimson )

If you're looking for examples of exceptional college application essays, this volume from Harvard's daily student newspaper is one of the best collections on the market.

Are you an instructor looking for the best resources for teaching essay writing? This section contains resources for developing in-class activities and student homework assignments. You'll find content from both well-known university writing centers and online writing labs.

Essay Writing Classroom Activities for Students

"In-class Writing Exercises" (Univ. of North Carolina Writing Center)

This page lists exercises related to brainstorming, organizing, drafting, and revising. It also contains suggestions for how to implement the suggested exercises.

"Teaching with Writing" (Univ. of Minnesota Center for Writing)

Instructions and encouragement for using "freewriting," one-minute papers, logbooks, and other write-to-learn activities in the classroom can be found here.

"Writing Worksheets" (Berkeley Student Learning Center)

Berkeley offers this bank of writing worksheets to use in class. They are nested under headings for "Prewriting," "Revision," "Research Papers" and more.

"Using Sources and Avoiding Plagiarism" (DePaul University)

Use these activities and worksheets from DePaul's Teaching Commons when instructing students on proper academic citation practices.

Essay Writing Homework Activities for Students

"Grammar and Punctuation Exercises" (Aims Online Writing Lab)

These five interactive online activities allow students to practice editing and proofreading. They'll hone their skills in correcting comma splices and run-ons, identifying fragments, using correct pronoun agreement, and comma usage.

"Student Interactives" (Read Write Think)

Read Write Think hosts interactive tools, games, and videos for developing writing skills. They can practice organizing and summarizing, writing poetry, and developing lines of inquiry and analysis.

This free website offers writing and grammar activities for all grade levels. The lessons are designed to be used both for large classes and smaller groups.

"Writing Activities and Lessons for Every Grade" (Education World)

Education World's page on writing activities and lessons links you to more free, online resources for learning how to "W.R.I.T.E.": write, revise, inform, think, and edit.

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Acknowledgements

This research was funded by the Japan Society for the Promotion of Science (grant JP24K04031JSPS).

Original publication

S. Yasuda:  Does “more complexity” equal “better writing”? Investigating the relationship between form-based complexity and meaning-based complexity in EFL learners’ argumentative writing . Assessing Writing  (2024). DOI: 10.1016/j.asw.2024.100867

Release on EurekAlert!

Researchers.

Yasuda Sachiko

• Institute for Promotion of Higher Education
• Graduate School of Intercultural Studies

More about these topics

What Makes a Class Attractive to University Students?

Why the Pandemic Probably Started in a Lab, in 5 Key Points

By Alina Chan

Dr. Chan is a molecular biologist at the Broad Institute of M.I.T. and Harvard, and a co-author of “Viral: The Search for the Origin of Covid-19.”

This article has been updated to reflect news developments.

On Monday, Dr. Anthony Fauci returned to the halls of Congress and testified before the House subcommittee investigating the Covid-19 pandemic. He was questioned about several topics related to the government’s handling of Covid-19, including how the National Institute of Allergy and Infectious Diseases, which he directed until retiring in 2022, supported risky virus work at a Chinese institute whose research may have caused the pandemic.

For more than four years, reflexive partisan politics have derailed the search for the truth about a catastrophe that has touched us all. It has been estimated that at least 25 million people around the world have died because of Covid-19, with over a million of those deaths in the United States.

Although how the pandemic started has been hotly debated, a growing volume of evidence — gleaned from public records released under the Freedom of Information Act, digital sleuthing through online databases, scientific papers analyzing the virus and its spread, and leaks from within the U.S. government — suggests that the pandemic most likely occurred because a virus escaped from a research lab in Wuhan, China. If so, it would be the most costly accident in the history of science.

Here’s what we now know:

1 The SARS-like virus that caused the pandemic emerged in Wuhan, the city where the world’s foremost research lab for SARS-like viruses is located.

• At the Wuhan Institute of Virology, a team of scientists had been hunting for SARS-like viruses for over a decade, led by Shi Zhengli.
• Their research showed that the viruses most similar to SARS‑CoV‑2, the virus that caused the pandemic, circulate in bats that live r oughly 1,000 miles away from Wuhan. Scientists from Dr. Shi’s team traveled repeatedly to Yunnan province to collect these viruses and had expanded their search to Southeast Asia. Bats in other parts of China have not been found to carry viruses that are as closely related to SARS-CoV-2.

The closest known relatives to SARS-CoV-2 were found in southwestern China and in Laos.

Large cities

Mine in Yunnan province

Cave in Laos

South China Sea

The closest known relatives to SARS-CoV-2

were found in southwestern China and in Laos.

philippines

The closest known relatives to SARS-CoV-2 were found

in southwestern China and Laos.

Sources: Sarah Temmam et al., Nature; SimpleMaps

Note: Cities shown have a population of at least 200,000.

There are hundreds of large cities in China and Southeast Asia.

There are hundreds of large cities in China

and Southeast Asia.

The pandemic started roughly 1,000 miles away, in Wuhan, home to the world’s foremost SARS-like virus research lab.

The pandemic started roughly 1,000 miles away,

in Wuhan, home to the world’s foremost SARS-like virus research lab.

The pandemic started roughly 1,000 miles away, in Wuhan,

home to the world’s foremost SARS-like virus research lab.

• Even at hot spots where these viruses exist naturally near the cave bats of southwestern China and Southeast Asia, the scientists argued, as recently as 2019 , that bat coronavirus spillover into humans is rare .
• When the Covid-19 outbreak was detected, Dr. Shi initially wondered if the novel coronavirus had come from her laboratory , saying she had never expected such an outbreak to occur in Wuhan.
• The SARS‑CoV‑2 virus is exceptionally contagious and can jump from species to species like wildfire . Yet it left no known trace of infection at its source or anywhere along what would have been a thousand-mile journey before emerging in Wuhan.

2 The year before the outbreak, the Wuhan institute, working with U.S. partners, had proposed creating viruses with SARS‑CoV‑2’s defining feature.

• Dr. Shi’s group was fascinated by how coronaviruses jump from species to species. To find viruses, they took samples from bats and other animals , as well as from sick people living near animals carrying these viruses or associated with the wildlife trade. Much of this work was conducted in partnership with the EcoHealth Alliance, a U.S.-based scientific organization that, since 2002, has been awarded over $80 million in federal funding to research the risks of emerging infectious diseases.
• The laboratory pursued risky research that resulted in viruses becoming more infectious : Coronaviruses were grown from samples from infected animals and genetically reconstructed and recombined to create new viruses unknown in nature. These new viruses were passed through cells from bats, pigs, primates and humans and were used to infect civets and humanized mice (mice modified with human genes). In essence, this process forced these viruses to adapt to new host species, and the viruses with mutations that allowed them to thrive emerged as victors.
• By 2019, Dr. Shi’s group had published a database describing more than 22,000 collected wildlife samples. But external access was shut off in the fall of 2019, and the database was not shared with American collaborators even after the pandemic started , when such a rich virus collection would have been most useful in tracking the origin of SARS‑CoV‑2. It remains unclear whether the Wuhan institute possessed a precursor of the pandemic virus.
• In 2021, The Intercept published a leaked 2018 grant proposal for a research project named Defuse , which had been written as a collaboration between EcoHealth, the Wuhan institute and Ralph Baric at the University of North Carolina, who had been on the cutting edge of coronavirus research for years. The proposal described plans to create viruses strikingly similar to SARS‑CoV‑2.
• Coronaviruses bear their name because their surface is studded with protein spikes, like a spiky crown, which they use to enter animal cells. T he Defuse project proposed to search for and create SARS-like viruses carrying spikes with a unique feature: a furin cleavage site — the same feature that enhances SARS‑CoV‑2’s infectiousness in humans, making it capable of causing a pandemic. Defuse was never funded by the United States . However, in his testimony on Monday, Dr. Fauci explained that the Wuhan institute would not need to rely on U.S. funding to pursue research independently.

The Wuhan lab ran risky experiments to learn about how SARS-like viruses might infect humans.

1. Collect SARS-like viruses from bats and other wild animals, as well as from people exposed to them.

2. Identify high-risk viruses by screening for spike proteins that facilitate infection of human cells.

2. Identify high-risk viruses by screening for spike proteins that facilitate infection of

human cells.

In Defuse, the scientists proposed to add a furin cleavage site to the spike protein.

3. Create new coronaviruses by inserting spike proteins or other features that could make the viruses more infectious in humans.

4. Infect human cells, civets and humanized mice with the new coronaviruses, to determine how dangerous they might be.

• While it’s possible that the furin cleavage site could have evolved naturally (as seen in some distantly related coronaviruses), out of the hundreds of SARS-like viruses cataloged by scientists, SARS‑CoV‑2 is the only one known to possess a furin cleavage site in its spike. And the genetic data suggest that the virus had only recently gained the furin cleavage site before it started the pandemic.
• Ultimately, a never-before-seen SARS-like virus with a newly introduced furin cleavage site, matching the description in the Wuhan institute’s Defuse proposal, caused an outbreak in Wuhan less than two years after the proposal was drafted.
• When the Wuhan scientists published their seminal paper about Covid-19 as the pandemic roared to life in 2020, they did not mention the virus’s furin cleavage site — a feature they should have been on the lookout for, according to their own grant proposal, and a feature quickly recognized by other scientists.
• Worse still, as the pandemic raged, their American collaborators failed to publicly reveal the existence of the Defuse proposal. The president of EcoHealth, Peter Daszak, recently admitted to Congress that he doesn’t know about virus samples collected by the Wuhan institute after 2015 and never asked the lab’s scientists if they had started the work described in Defuse. In May, citing failures in EcoHealth’s monitoring of risky experiments conducted at the Wuhan lab, the Biden administration suspended all federal funding for the organization and Dr. Daszak, and initiated proceedings to bar them from receiving future grants. In his testimony on Monday, Dr. Fauci said that he supported the decision to suspend and bar EcoHealth.
• Separately, Dr. Baric described the competitive dynamic between his research group and the institute when he told Congress that the Wuhan scientists would probably not have shared their most interesting newly discovered viruses with him . Documents and email correspondence between the institute and Dr. Baric are still being withheld from the public while their release is fiercely contested in litigation.
• In the end, American partners very likely knew of only a fraction of the research done in Wuhan. According to U.S. intelligence sources, some of the institute’s virus research was classified or conducted with or on behalf of the Chinese military . In the congressional hearing on Monday, Dr. Fauci repeatedly acknowledged the lack of visibility into experiments conducted at the Wuhan institute, saying, “None of us can know everything that’s going on in China, or in Wuhan, or what have you. And that’s the reason why — I say today, and I’ve said at the T.I.,” referring to his transcribed interview with the subcommittee, “I keep an open mind as to what the origin is.”

3 The Wuhan lab pursued this type of work under low biosafety conditions that could not have contained an airborne virus as infectious as SARS‑CoV‑2.

• Labs working with live viruses generally operate at one of four biosafety levels (known in ascending order of stringency as BSL-1, 2, 3 and 4) that describe the work practices that are considered sufficiently safe depending on the characteristics of each pathogen. The Wuhan institute’s scientists worked with SARS-like viruses under inappropriately low biosafety conditions .

In the United States, virologists generally use stricter Biosafety Level 3 protocols when working with SARS-like viruses.

Biosafety cabinets prevent

viral particles from escaping.

Viral particles

Personal respirators provide

a second layer of defense against breathing in the virus.

DIRECT CONTACT

Gloves prevent skin contact.

Disposable wraparound

gowns cover much of the rest of the body.

Personal respirators provide a second layer of defense against breathing in the virus.

Disposable wraparound gowns

cover much of the rest of the body.

Note: ​​Biosafety levels are not internationally standardized, and some countries use more permissive protocols than others.

The Wuhan lab had been regularly working with SARS-like viruses under Biosafety Level 2 conditions, which could not prevent a highly infectious virus like SARS-CoV-2 from escaping.

Some work is done in the open air, and masks are not required.

Less protective equipment provides more opportunities

for contamination.

Some work is done in the open air,

and masks are not required.

Less protective equipment provides more opportunities for contamination.

• In one experiment, Dr. Shi’s group genetically engineered an unexpectedly deadly SARS-like virus (not closely related to SARS‑CoV‑2) that exhibited a 10,000-fold increase in the quantity of virus in the lungs and brains of humanized mice . Wuhan institute scientists handled these live viruses at low biosafet y levels , including BSL-2.
• Even the much more stringent containment at BSL-3 cannot fully prevent SARS‑CoV‑2 from escaping . Two years into the pandemic, the virus infected a scientist in a BSL-3 laboratory in Taiwan, which was, at the time, a zero-Covid country. The scientist had been vaccinated and was tested only after losing the sense of smell. By then, more than 100 close contacts had been exposed. Human error is a source of exposure even at the highest biosafety levels , and the risks are much greater for scientists working with infectious pathogens at low biosafety.
• An early draft of the Defuse proposal stated that the Wuhan lab would do their virus work at BSL-2 to make it “highly cost-effective.” Dr. Baric added a note to the draft highlighting the importance of using BSL-3 to contain SARS-like viruses that could infect human cells, writing that “U.S. researchers will likely freak out.” Years later, after SARS‑CoV‑2 had killed millions, Dr. Baric wrote to Dr. Daszak : “I have no doubt that they followed state determined rules and did the work under BSL-2. Yes China has the right to set their own policy. You believe this was appropriate containment if you want but don’t expect me to believe it. Moreover, don’t insult my intelligence by trying to feed me this load of BS.”
• SARS‑CoV‑2 is a stealthy virus that transmits effectively through the air, causes a range of symptoms similar to those of other common respiratory diseases and can be spread by infected people before symptoms even appear. If the virus had escaped from a BSL-2 laboratory in 2019, the leak most likely would have gone undetected until too late.
• One alarming detail — leaked to The Wall Street Journal and confirmed by current and former U.S. government officials — is that scientists on Dr. Shi’s team fell ill with Covid-like symptoms in the fall of 2019 . One of the scientists had been named in the Defuse proposal as the person in charge of virus discovery work. The scientists denied having been sick .

4 The hypothesis that Covid-19 came from an animal at the Huanan Seafood Market in Wuhan is not supported by strong evidence.

• In December 2019, Chinese investigators assumed the outbreak had started at a centrally located market frequented by thousands of visitors daily. This bias in their search for early cases meant that cases unlinked to or located far away from the market would very likely have been missed. To make things worse, the Chinese authorities blocked the reporting of early cases not linked to the market and, claiming biosafety precautions, ordered the destruction of patient samples on January 3, 2020, making it nearly impossible to see the complete picture of the earliest Covid-19 cases. Information about dozens of early cases from November and December 2019 remains inaccessible.
• A pair of papers published in Science in 2022 made the best case for SARS‑CoV‑2 having emerged naturally from human-animal contact at the Wuhan market by focusing on a map of the early cases and asserting that the virus had jumped from animals into humans twice at the market in 2019. More recently, the two papers have been countered by other virologists and scientists who convincingly demonstrate that the available market evidence does not distinguish between a human superspreader event and a natural spillover at the market.
• Furthermore, the existing genetic and early case data show that all known Covid-19 cases probably stem from a single introduction of SARS‑CoV‑2 into people, and the outbreak at the Wuhan market probably happened after the virus had already been circulating in humans.

An analysis of SARS-CoV-2’s evolutionary tree shows how the virus evolved as it started to spread through humans.

SARS-COV-2 Viruses closest

to bat coronaviruses

more mutations

Source: Lv et al., Virus Evolution (2024) , as reproduced by Jesse Bloom

The viruses that infected people linked to the market were most likely not the earliest form of the virus that started the pandemic.

• Not a single infected animal has ever been confirmed at the market or in its supply chain. Without good evidence that the pandemic started at the Huanan Seafood Market, the fact that the virus emerged in Wuhan points squarely at its unique SARS-like virus laboratory.

5 Key evidence that would be expected if the virus had emerged from the wildlife trade is still missing.

In previous outbreaks of coronaviruses, scientists were able to demonstrate natural origin by collecting multiple pieces of evidence linking infected humans to infected animals.

Infected animals

Earliest known

cases exposed to

live animals

Antibody evidence

of animals and

animal traders having

been infected

Ancestral variants

of the virus found in

Documented trade

of host animals

between the area

where bats carry

closely related viruses

and the outbreak site

Infected animals found

Earliest known cases exposed to live animals

Antibody evidence of animals and animal

traders having been infected

Ancestral variants of the virus found in animals

Documented trade of host animals

between the area where bats carry closely

related viruses and the outbreak site

For SARS-CoV-2, these same key pieces of evidence are still missing , more than four years after the virus emerged.

For SARS-CoV-2, these same key pieces of evidence are still missing ,

more than four years after the virus emerged.

• Despite the intense search trained on the animal trade and people linked to the market, investigators have not reported finding any animals infected with SARS‑CoV‑2 that had not been infected by humans. Yet, infected animal sources and other connective pieces of evidence were found for the earlier SARS and MERS outbreaks as quickly as within a few days, despite the less advanced viral forensic technologies of two decades ago.
• Even though Wuhan is the home base of virus hunters with world-leading expertise in tracking novel SARS-like viruses, investigators have either failed to collect or report key evidence that would be expected if Covid-19 emerged from the wildlife trade . For example, investigators have not determined that the earliest known cases had exposure to intermediate host animals before falling ill. No antibody evidence shows that animal traders in Wuhan are regularly exposed to SARS-like viruses, as would be expected in such situations.
• With today’s technology, scientists can detect how respiratory viruses — including SARS, MERS and the flu — circulate in animals while making repeated attempts to jump across species . Thankfully, these variants usually fail to transmit well after crossing over to a new species and tend to die off after a small number of infections. In contrast, virologists and other scientists agree that SARS‑CoV‑2 required little to no adaptation to spread rapidly in humans and other animals . The virus appears to have succeeded in causing a pandemic upon its only detected jump into humans.

The pandemic could have been caused by any of hundreds of virus species, at any of tens of thousands of wildlife markets, in any of thousands of cities, and in any year. But it was a SARS-like coronavirus with a unique furin cleavage site that emerged in Wuhan, less than two years after scientists, sometimes working under inadequate biosafety conditions, proposed collecting and creating viruses of that same design.

While several natural spillover scenarios remain plausible, and we still don’t know enough about the full extent of virus research conducted at the Wuhan institute by Dr. Shi’s team and other researchers, a laboratory accident is the most parsimonious explanation of how the pandemic began.

Given what we now know, investigators should follow their strongest leads and subpoena all exchanges between the Wuhan scientists and their international partners, including unpublished research proposals, manuscripts, data and commercial orders. In particular, exchanges from 2018 and 2019 — the critical two years before the emergence of Covid-19 — are very likely to be illuminating (and require no cooperation from the Chinese government to acquire), yet they remain beyond the public’s view more than four years after the pandemic began.

Whether the pandemic started on a lab bench or in a market stall, it is undeniable that U.S. federal funding helped to build an unprecedented collection of SARS-like viruses at the Wuhan institute, as well as contributing to research that enhanced them . Advocates and funders of the institute’s research, including Dr. Fauci, should cooperate with the investigation to help identify and close the loopholes that allowed such dangerous work to occur. The world must not continue to bear the intolerable risks of research with the potential to cause pandemics .

A successful investigation of the pandemic’s root cause would have the power to break a decades-long scientific impasse on pathogen research safety, determining how governments will spend billions of dollars to prevent future pandemics. A credible investigation would also deter future acts of negligence and deceit by demonstrating that it is indeed possible to be held accountable for causing a viral pandemic. Last but not least, people of all nations need to see their leaders — and especially, their scientists — heading the charge to find out what caused this world-shaking event. Restoring public trust in science and government leadership requires it.

A thorough investigation by the U.S. government could unearth more evidence while spurring whistleblowers to find their courage and seek their moment of opportunity. It would also show the world that U.S. leaders and scientists are not afraid of what the truth behind the pandemic may be.

More on how the pandemic may have started

Where Did the Coronavirus Come From? What We Already Know Is Troubling.

Even if the coronavirus did not emerge from a lab, the groundwork for a potential disaster had been laid for years, and learning its lessons is essential to preventing others.

By Zeynep Tufekci

Why Does Bad Science on Covid’s Origin Get Hyped?

If the raccoon dog was a smoking gun, it fired blanks.

By David Wallace-Wells

A Plea for Making Virus Research Safer

A way forward for lab safety.

By Jesse Bloom

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Alina Chan ( @ayjchan ) is a molecular biologist at the Broad Institute of M.I.T. and Harvard, and a co-author of “ Viral : The Search for the Origin of Covid-19.” She was a member of the Pathogens Project , which the Bulletin of the Atomic Scientists organized to generate new thinking on responsible, high-risk pathogen research.

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