How to Write a Book Review: A Simple Structure (With an Example)

You finished a book and you have something to say about it. Maybe you want to post a few lines on Goodreads, write a short piece for your blog, leave a review for a bookstore, or hand in a review for class. The hard part is rarely the opinion. It is knowing where to start and what to leave out.

This guide gives you a simple five-part structure you can use for almost any book, a complete example review, and a handful of tips that make a review more useful to the person reading it.

What a book review is (and is not)

A book review is your informed reaction to a book. It tells a reader what kind of book this is, how it made you think or feel, and whether it is worth their time.

A book review is not a plot summary. If most of your review retells what happens, the reader learns nothing they could not get from the back cover. A short setup is enough. The rest of the space belongs to your judgment: what worked, what did not, and why.

It is also not a verdict handed down from nowhere. "I loved it" or "it was boring" is a reaction, but it becomes a review only when you explain what produced that reaction.

Before you write

A good review is mostly gathered before it is written. Before you open a blank page, collect three things:

• The lines you marked. Any passage you underlined, flagged, or copied out is evidence. It shows the reader what the book actually sounds like. If you did not mark anything this time, it is worth learning how to take book notes for the next book.
• Your one-sentence verdict. Try to finish this sentence: "This book is ___, and it is worth reading if ___." If you can write that, the rest of the review has a spine.
• Your first reaction. Write down how you felt when you closed the book, before you start thinking about how a review should sound. That honest first response is often the most interesting part of what you have to say.

A five-part structure

This structure works for a 100-word Goodreads review and for a longer blog post. Each part can be a sentence or a paragraph, depending on how much room you have.

1. The hook. Open with a first line that gives the reader a reason to keep going: a strong opinion, a surprising detail, or the question the book left you with.
2. What the book is about, without spoilers. In two or three sentences, give the setup: who, where, and what the central tension is. Stop before the turning points.
3. What worked. Name the specific things the book does well, such as the characters, the voice, the structure, or the ideas, and give an example for at least one of them.
4. What did not work. Say where the book lost you, dragged, or fell short. Be specific here too. One honest weakness makes your praise more believable.
5. Who it is for, and your rating. Tell the reader who will enjoy this book and who might not, then give your rating if the site or your format uses one.

An example review

Here is a personal book review of Pride and Prejudice by Jane Austen, written using the five parts above. It is about 180 words, which is a comfortable length for a reading site or a blog.

I expected a polite romance and got one of the funniest, sharpest books I have read in years.

Elizabeth Bennet is the second of five daughters in a family that needs at least one of them to marry well. When the wealthy, unbearably proud Mr. Darcy arrives in the neighborhood, she decides exactly what she thinks of him, and so does everyone else.

What surprised me most was the humor. Austen's narrator is dry and quietly merciless, and Mr. Collins had me laughing out loud. The famous first line, "It is a truth universally acknowledged," is a joke, and once I noticed that, the whole book opened up. Elizabeth is also genuinely clever, and her mistakes come from that cleverness, which makes them feel real.

The middle section slowed down for me. Some of the visits and letters felt repetitive, and a few of the minor sisters blur together.

Read it if you like witty dialogue and characters who have to admit they were wrong. Skip it if you need fast pacing. Four and a half stars.

Notice what the review does not do. It does not reveal how the story ends, it quotes only one short line, and every opinion is tied to something specific in the book.

Tips for a better review

• Avoid spoilers. Describe the setup, not the twists. If you must discuss the ending, say so clearly at the top and keep it to the end of the review.
• Be specific. "The writing was beautiful" tells the reader very little. "The sentences are short and plain, which makes the sad scenes hit harder" tells them a lot.
• Use one quote. A single well-chosen line shows the book's voice better than any description. More than one or two starts to crowd out your own thinking.
• Say who it is for. The most useful sentence in many reviews is the one that tells a reader whether this book is meant for them.
• Be fair to books you did not love. Separate "this was not for me" from "this was badly done." A book can be well made and still not suit your taste.
• Keep it short. Most readers skim. A focused review of 150 to 300 words often does more than a long one.

Reviews for yourself versus reviews for others

Not every review needs an audience. A review written in your own reading journal can be messier and more honest than a public one. You can admit that a book made you think about your own family, that you disliked a character for personal reasons, or that you are not sure what you think yet. Nobody is grading it.

A review for others has a different job. It has to be clear, avoid spoilers, and help a stranger decide whether to pick up the book. That means trimming the personal tangents and keeping the parts that would matter to someone else.

The two versions work well together. Write the private one first, while the book is fresh, and say everything. Later, if you want to post a review for Goodreads or Amazon, shorten it: keep your verdict, your best specific example, and who the book is for. If you would like a routine for the private side, here is a guide on how to keep a reading journal.

Keeping your book reviews with Kept

Kept is a private reading journal. While you read, you can mark a line that stays with you, and it is kept together with that book, so you are not hunting through sticky notes when it is time to write. When you finish, you add a reflection on the book. That reflection can become the starting point for a review, the honest first draft you shorten later if you decide to share it.

Kept is private by design. There is no feed and there are no followers, so what you write is for you unless you choose to copy it somewhere else. It is free to start, and some features are part of a paid plan.

Frequently asked questions

How long should a book review be?

For a reading site or a store, 100 to 300 words is usually enough. A blog review can run longer, but a clear verdict and one or two specific examples matter more than length.

Should I include spoilers in a book review?

In most cases, no. If you need to discuss the ending, add a clear spoiler warning at the start and put that discussion at the end so readers can stop in time.

Can I write a negative book review?

Yes. A negative review is useful when it explains what did not work and why, rather than only saying you disliked it. Mentioning who might still enjoy the book keeps it fair.

What rating system should I use?

Use whatever the site asks for, which is often five stars. For your own journal, any system works as long as you use it consistently, and a one-line reason next to the rating makes it far more useful later.

How do I review a book I did not finish?

Say clearly that you did not finish it and roughly how far you got. Then explain what made you stop, which is honest information that can help other readers decide.