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How to Write an Expository Essay | Structure, Tips & Examples

Published on July 14, 2020 by Jack Caulfield . Revised on July 23, 2023.

“Expository” means “intended to explain or describe something.” An expository essay provides a clear, focused explanation of a particular topic, process, or set of ideas. It doesn’t set out to prove a point, just to give a balanced view of its subject matter.

Expository essays are usually short assignments intended to test your composition skills or your understanding of a subject. They tend to involve less research and original arguments than argumentative essays .

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Table of contents

When should you write an expository essay, how to approach an expository essay, introducing your essay, writing the body paragraphs, concluding your essay, other interesting articles, frequently asked questions about expository essays.

In school and university, you might have to write expository essays as in-class exercises, exam questions, or coursework assignments.

Sometimes it won’t be directly stated that the assignment is an expository essay, but there are certain keywords that imply expository writing is required. Consider the prompts below.

The word “explain” here is the clue: An essay responding to this prompt should provide an explanation of this historical process—not necessarily an original argument about it.

Sometimes you’ll be asked to define a particular term or concept. This means more than just copying down the dictionary definition; you’ll be expected to explore different ideas surrounding the term, as this prompt emphasizes.

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An expository essay should take an objective approach: It isn’t about your personal opinions or experiences. Instead, your goal is to provide an informative and balanced explanation of your topic. Avoid using the first or second person (“I” or “you”).

The structure of your expository essay will vary according to the scope of your assignment and the demands of your topic. It’s worthwhile to plan out your structure before you start, using an essay outline .

A common structure for a short expository essay consists of five paragraphs: An introduction, three body paragraphs, and a conclusion.

Like all essays, an expository essay begins with an introduction . This serves to hook the reader’s interest, briefly introduce your topic, and provide a thesis statement summarizing what you’re going to say about it.

Hover over different parts of the example below to see how a typical introduction works.

In many ways, the invention of the printing press marked the end of the Middle Ages. The medieval period in Europe is often remembered as a time of intellectual and political stagnation. Prior to the Renaissance, the average person had very limited access to books and was unlikely to be literate. The invention of the printing press in the 15th century allowed for much less restricted circulation of information in Europe, paving the way for the Reformation.

The body of your essay is where you cover your topic in depth. It often consists of three paragraphs, but may be more for a longer essay. This is where you present the details of the process, idea or topic you’re explaining.

It’s important to make sure each paragraph covers its own clearly defined topic, introduced with a topic sentence . Different topics (all related to the overall subject matter of the essay) should be presented in a logical order, with clear transitions between paragraphs.

Hover over different parts of the example paragraph below to see how a body paragraph is constructed.

The invention of the printing press in 1440 changed this situation dramatically. Johannes Gutenberg, who had worked as a goldsmith, used his knowledge of metals in the design of the press. He made his type from an alloy of lead, tin, and antimony, whose durability allowed for the reliable production of high-quality books. This new technology allowed texts to be reproduced and disseminated on a much larger scale than was previously possible. The Gutenberg Bible appeared in the 1450s, and a large number of printing presses sprang up across the continent in the following decades. Gutenberg’s invention rapidly transformed cultural production in Europe; among other things, it would lead to the Protestant Reformation.

The conclusion of an expository essay serves to summarize the topic under discussion. It should not present any new information or evidence, but should instead focus on reinforcing the points made so far. Essentially, your conclusion is there to round off the essay in an engaging way.

Hover over different parts of the example below to see how a conclusion works.

The invention of the printing press was important not only in terms of its immediate cultural and economic effects, but also in terms of its major impact on politics and religion across Europe. In the century following the invention of the printing press, the relatively stationary intellectual atmosphere of the Middle Ages gave way to the social upheavals of the Reformation and the Renaissance. A single technological innovation had contributed to the total reshaping of the continent.

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An expository essay is a broad form that varies in length according to the scope of the assignment.

Expository essays are often assigned as a writing exercise or as part of an exam, in which case a five-paragraph essay of around 800 words may be appropriate.

You’ll usually be given guidelines regarding length; if you’re not sure, ask.

An expository essay is a common assignment in high-school and university composition classes. It might be assigned as coursework, in class, or as part of an exam.

Sometimes you might not be told explicitly to write an expository essay. Look out for prompts containing keywords like “explain” and “define.” An expository essay is usually the right response to these prompts.

An argumentative essay tends to be a longer essay involving independent research, and aims to make an original argument about a topic. Its thesis statement makes a contentious claim that must be supported in an objective, evidence-based way.

An expository essay also aims to be objective, but it doesn’t have to make an original argument. Rather, it aims to explain something (e.g., a process or idea) in a clear, concise way. Expository essays are often shorter assignments and rely less on research.

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Expository Writing: Definition and Examples

By Hannah Yang

Table of Contents

What is expository writing, what is an expository paragraph, expository writing examples, how prowritingaid can help you with expository composition.

One of the most common types of writing is expository writing. Whether you’re a student taking an English class or a professional trying to communicate to others in your field, you’ll need to use expository writing in your day-to-day work.

So, what exactly does this term mean?

The short answer is that expository writing refers to any writing designed primarily to explain or instruct.

Read on to learn the definition of expository writing as well as some examples of what this type of writing can look like.

Before we look at examples of expository writing, let’s start with a quick definition of what this term actually means.

Expository Writing Definition

The term expository writing refers to any writing that’s designed to explain something. We use the word expository to describe any passage of writing that’s supposed to present information and help you understand it in an objective way.

Some common examples of expository writing include academic essays, textbooks, instructional guides, and news reports. Good expository writing should be factual, objective, and clear.

To better understand what this term means, think about the difference between a scientific article, a short story, and an advertisement.

The scientific article is considered expository writing because its primary purpose is to explain a particular topic in more detail. It presents data, analyzes what that data means, and focuses on the facts.  

On the other hand, the short story isn’t considered expository writing, because its core purpose isn’t to explain or inform—instead, it’s probably trying to entertain you or to take you on a journey. Short stories are narrative writing.

Similarly, an advertisement isn’t expository writing because its core purpose isn’t to explain or inform—instead, it’s trying to persuade you to buy what it’s selling. Advertisements are persuasive writing.   

Here’s a quick rundown of what expository essays should and shouldn’t do.

An expository essay should:

Teach the reader about a particular topic

Focus on the facts

Follow a clearly organized structure

Present information and details from credible sources

An expository essay should not:

Try to change the reader’s mind about something

Present the author’s personal opinions

Include made-up narratives or stories

Follow experimental or nonlinear structures

An expository paragraph is exactly what it sounds like—a paragraph of expository writing.

A well-written expository paragraph should follow a specific format to make it as clear and easy to read as possible. Most expository paragraphs do the following things:

Start with a topic sentence, which explains what the paragraph will be about

Then, include 3 – 5 body sentences that provide supporting details for the topic sentence

Finally, wrap things up with a closing sentence that summarizes what the paragraph has said

Writing an expository paragraph is a great way to practice expository writing. That’s because the paragraph follows the same structure as a more complex expository essay, just on a smaller scale.

Most expository essays should follow this format:  

Start with an introductory paragraph that includes the thesis statement, which tells the reader the core statement of the essay

Then, include 3 – 5 body paragraphs that provide factual evidence to support the thesis statement

Finally, wrap things up with a concluding paragraph that summarizes what the body paragraphs and thesis statement said

You can see the similarities between the two formats. If you can write a fantastic expository paragraph, you’ll be well-prepared to move on to writing a full expository essay.

Example of Expository Paragraph

Here’s an example of an expository paragraph that follows the structure described above.

The leading cause of death in the United States is heart disease, which can be fatal if it leads to heart attack or cardiac arrest. Heart attacks occur when a blockage in the coronary artery prevents oxygenated blood from reaching the heart. Cardiac arrests occur when the heart stops pumping entirely, which prevents the patient from breathing normally. Both of these problems can be deadly, even in seemingly healthy people who don’t have noticeable risk factors. As a result, heart disease is an important problem that many doctors and scientists are researching.

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There are many ways you can present information in an expository essay. Here are four of the most popular ways, along with examples of each one.  

Problem and Solution Essay

A problem and solution essay presents the reader with a problem and then considers possible solutions to that problem. 

Here’s an example passage you might find in a problem and solution essay:

Among the many proposed solutions to rising carbon emissions, one promising possibility is carbon trapping. Scientists are figuring out how to pull carbon emissions out of the atmosphere and trap it in less harmful forms, such as by injecting carbon dioxide underground so it will turn to stone.

Compare and Contrast Essay

This type of essay takes two subjects and compares and contrasts them. It focuses on highlighting the differences and similarities between those two things.

Here’s an example passage of this type of expository writing:

Though country music and R&B music have very different sounds, they also share many similarities. For one thing, both types of music embody a specific cultural identity. For another, both genres trace their roots back to the 1920s, when the Victor Talking Machine Company signed singers from the American South.

Classification Essay

In a classification essay, you describe the categories within a certain group of things.  

Here’s an example passage you might find in a classification essay:

There are three ways in which artificial intelligence might become stronger than humans in the future: high speed, high collective intelligence, and high quality. A speed AI would be able to perform calculations and experience the world much faster than humans. A collective intelligence, like a hive mind, would be able to break down a complex task into several parts and pursue them simultaneously. Finally, a quality AI would simply be able to solve more complex problems than humans could.

Process Essay

In a process essay, you give the reader the steps for completing a specific process. This is similar to a how-to guide or an instruction manual.   

Here’s an example passage you might find in this type of expository writing:

Caramelize the chopped onions in a frying pan. When the onions have caramelized, mix in the bell peppers, mushrooms, and tomatoes and stir for 4 – 6 minutes or until all the ingredients have softened. If you want to add meat, you can add ground beef and cook for another 4 – 6 minutes. Season with salt and pepper to taste.  

Good expository writing should be easy to read. After all, the purpose of exposition is to explain things to your readers, and you won’t be able to accomplish that if they have trouble understanding your writing.

That’s why ProWritingAid can help you write an expository essay. The grammar checker can help you ensure your sentences flow well, you’re not missing any necessary punctuation, and all your words are precise and clear.

Good luck, and happy writing!

Hannah Yang

Hannah is a speculative fiction writer who loves all things strange and surreal. She holds a BA from Yale University and lives in Colorado. When she’s not busy writing, you can find her painting watercolors, playing her ukulele, or hiking in the Rockies. Follow her work on hannahyang.com or on Twitter at @hannahxyang.

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Expository Writing: Everything You Need to Know

Expository writing, as its name implies, is writing that exposes facts. In other words, it’s writing that explains and educates its readers, rather than entertaining or attempting to persuade them. When you read a scholarly article, a textbook page, a news report, or an instructional guide, you’re reading expository writing. 

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What is expository writing?

Expository writing is writing that aims to inform its reader. As we mentioned above, this includes all types of factual writing, like textbooks, news stories, technical guides, and pieces of business writing. Many journalistic pieces are pieces of expository writing, but not all are—advertorials, opinion pieces, and many pieces of political writing are not pieces of expository writing because their primary goal is something other than providing unbiased facts. 

An easy way to understand expository writing is to compare and contrast it with other types of writing . Three other commonly recognized types of writing are descriptive , narrative , and persuasive . Each of these types of writing has a specific goal. Descriptive writing creates a sense of time, place, and experience in the reader’s mind. Narrative writing tells the reader a story. Persuasive writing convinces the reader that a specific position is the right position. Expository writing gives the reader the facts they need about a specific topic to deepen their understanding of it. 

Expository writing is:

• Usually presented in a linear format
• Always presented in a logical format
• Clear about its purpose

Expository writing is not:

• The author’s opinion
• An attempt to change the reader’s mind or shape their perspective
• Nonlinear or otherwise unconventional in how it presents content

Expository writing can still be fun and engaging

Although expository writing is fact-based, it doesn’t need to be dry or boring. Skilled writing can present factual information in an engaging way that only increases the reader’s comprehension of the topic, often by borrowing techniques used in narrative and descriptive writing to make the facts more vivid and impactful. If you’ve ever seen the docuseries Cosmos , you’ve seen engaging expository writing in action. In both the 1980 and 2014 versions, the host captivates viewers by guiding them through our known universe, our solar system, and how life on Earth evolved over millennia. Although Cosmos is a docuseries, the narrative that speaks directly to the viewer and constantly positions them within our universe’s story is a kind of expository writing: screenwriting.  

However, discerning an expository piece’s credibility can be tricky at times. Remember one of the kinds of writing we mentioned above, advertorials? An advertorial is an advertisement disguised as an editorial. In other words, it’s an article presented as either fact or the author’s personal thoughts, but really, it’s a sponsored advertisement. Advertorials aren’t the only instance where you can find subjective opinions disguised as objective facts—many documentaries, journalistic pieces, books, and even scholarly articles are written according to the author’s bias or to fit a specific agenda.

This is why it’s so critical to carefully vet every source you use when you’re working on an expository writing assignment. Inadvertently using a biased source in your academic writing can undermine your work by making it look like you either didn’t research the topic carefully or are pushing a specific agenda in your writing.

Types of expository writing

There are numerous ways to present topics in a piece of expository writing:

• Compare and contrast . In a compare-and-contrast essay , you present two or more subjects and write about their similarities and differences. 
• Definition. This type of expository writing defines a subject. For example, you might write a piece that defines a historic figure by exploring their actions, motivations, and circumstances. 
• Classification. In a classification piece, you write about the characteristics of multiple subjects within one category. For example, you might write a blog post about the types of expository writing. In that blog post, you explain each type of expository writing, covering their differences as well as their similarities. 
• Problem and solution. In a problem and solution piece, you explain an existing problem and then explore the most effective solution for that problem. This kind of structure can also be found in persuasive writing, but when it’s used in expository writing, it’s generally used in troubleshooting guides and to explain how specific problems have been solved.
• Process. When you need to explain how a process works or the steps the reader needs to follow to assemble something or complete another task, you write out the process step by step, providing as much explanation as necessary for each step.

Just like the other commonly recognized writing styles , you’ll find lots of drastically different expository writing examples. Technical manuals and research papers are both types of expository writing. So are lab reports, investigative journalism pieces, expository essays, and explainer video scripts. Even recipes count as pieces of expository writing, as do travel guides and biographies. 

How to do expository writing effectively

As a student, many of your writing assignments are pieces of expository writing. Presenting facts in a logical, clear way is a much different task from writing a fictional story or supporting your opinion. Here are a few tips to keep in mind when you’re completing expository writing assignments:

Work through the entire writing process

The first step in writing a strong piece isn’t typing words on a screen, but rather brainstorming your topic. With other kinds of writing, like narrative or persuasive writing, you might have a clear idea of what you want to write from the moment you receive your assignment and, with it, skip ahead a few steps in the writing process . But because you’re working with facts and a strategy for presenting them in a coherent, engaging way, you’ll need to devote time to thoroughly brainstorming, researching, outlining, and then drafting your work. 

Be creative, but constrained

There’s room to have a little fun in your expository writing, but it’s not going to be a party on the page. Use literary devices like similes and juxtaposition sparingly and only when they serve to make the facts clearer to your reader. 

Always check the facts

Expository writing is all about the facts. When you’re researching, you might come across contradictory sources. If this happens, examine the conflicting information to find the truth. You can do this by researching that specific piece of information and finding what other scholarly sources have to say about it and by examining who published the two conflicting sources. If one is a personal blog and the other is an article from a .edu or .gov website, the latter is more likely to be unbiased. 

Share the facts with style

Expository writing is logical and fact-based, but it doesn’t have to be boring. In fact, it shouldn’t be. But it’s not always easy to present facts and figures in an engaging style. 

Grammarly can help. Our writing suggestions ensure you’re using engaging vocabulary and that your sentences flow clearly. In addition, with Grammarly’s tone detector, you can instantly see how your writing is communicating with its reader: confident, friendly, direct, and casual are just a few of the tones Grammarly can pick up. 

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Expository Essays

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What is an expository essay?

The expository essay is a genre of essay that requires the student to investigate an idea, evaluate evidence, expound on the idea, and set forth an argument concerning that idea in a clear and concise manner. This can be accomplished through comparison and contrast, definition, example, the analysis of cause and effect, etc.

Please note : This genre is commonly assigned as a tool for classroom evaluation and is often found in various exam formats.

The structure of the expository essay is held together by the following.

• A clear, concise, and defined thesis statement that occurs in the first paragraph of the essay.

It is essential that this thesis statement be appropriately narrowed to follow the guidelines set forth in the assignment. If the student does not master this portion of the essay, it will be quite difficult to compose an effective or persuasive essay.

• Clear and logical transitions between the introduction, body, and conclusion.

Transitions are the mortar that holds the foundation of the essay together. Without logical progression of thought, the reader is unable to follow the essay’s argument, and the structure will collapse.

• Body paragraphs that include evidential support.

Each paragraph should be limited to the exposition of one general idea. This will allow for clarity and direction throughout the essay. What is more, such conciseness creates an ease of readability for one’s audience. It is important to note that each paragraph in the body of the essay must have some logical connection to the thesis statement in the opening paragraph.

• Evidential support (whether factual, logical, statistical, or anecdotal).

Often times, students are required to write expository essays with little or no preparation; therefore, such essays do not typically allow for a great deal of statistical or factual evidence.

• A bit of creativity!

Though creativity and artfulness are not always associated with essay writing, it is an art form nonetheless. Try not to get stuck on the formulaic nature of expository writing at the expense of writing something interesting. Remember, though you may not be crafting the next great novel, you are attempting to leave a lasting impression on the people evaluating your essay.

• A conclusion that does not simply restate the thesis, but readdresses it in light of the evidence provided.

It is at this point of the essay that students will inevitably begin to struggle. This is the portion of the essay that will leave the most immediate impression on the mind of the reader. Therefore, it must be effective and logical. Do not introduce any new information into the conclusion; rather, synthesize and come to a conclusion concerning the information presented in the body of the essay.

A complete argument

Perhaps it is helpful to think of an essay in terms of a conversation or debate with a classmate. If I were to discuss the cause of the Great Depression and its current effect on those who lived through the tumultuous time, there would be a beginning, middle, and end to the conversation. In fact, if I were to end the exposition in the middle of my second point, questions would arise concerning the current effects on those who lived through the Depression. Therefore, the expository essay must be complete, and logically so, leaving no doubt as to its intent or argument.

The five-paragraph Essay

A common method for writing an expository essay is the five-paragraph approach. This is, however, by no means the only formula for writing such essays. If it sounds straightforward, that is because it is; in fact, the method consists of:

• an introductory paragraph
• three evidentiary body paragraphs
• a conclusion