How to write a book description for a nonfiction book, with a template and examples
A nonfiction book description is a short sales page for one reader: who the book is for, the problem they have, what the book will do about it, why this author, and why now. Aim for about 150 to 200 words, open with a sentence that draws the reader in, and promise instead of summarize. Below: the parts in order, Amazon's rules, four examples we wrote, a template and a simple test.
Stage 9 of this guide covers the description in one paragraph. This page goes deeper.
What a book description has to do
A browser gives your description a few seconds. In that time it has to answer five questions:
- Is this for me? The reader recognizes their situation by the second sentence.
- Does it understand my problem? Name it the way the reader would say it to a friend.
- What will change if I read it? A concrete result, not a feeling.
- Why trust this author? One or two facts that earn the right to make the promise.
- Why now? What waiting costs the reader. Not a sale or a launch date, which Amazon does not allow.
Amazon's metadata guidelines describe the description as a 30-second elevator pitch to persuade a casual browser.
Where it appears
- The Amazon detail page, which KDP calls often a reader's first experience with the content of your book, and other online stores.
- The back cover or jacket flap, in a shorter version that shares space with blurbs, a short bio and the barcode.
- A publisher's catalog and the listing data it sends to stores and libraries, if you have a publisher.
- Your own site and materials, where you can add approved praise and a link to buy.
Write one master version and adapt it. The promise never changes.
The parts, in order
The hook
One or two sentences that make the reader want the next line. KDP's help says the first sentence may be a reader's first impression, so make it special. A question, a contradiction or a vivid line about the reader's situation beats a statement about the book.
The reader and their problem
Two to four sentences naming who the book is for and what they struggle with, in their words. If you interviewed readers while testing your idea, use their phrases here.
The promise and what is inside
What the reader will be able to do after the book, then three to five specifics, often as bullets. Each is a result or a tool, not a chapter title.
Why this author
One or two sentences, in the third person, with the facts that earn trust on this subject. Save the rest for the author bio.
Why now, and the close
The cost of waiting or the moment the reader is in, then a line that sends them into the book. "If you are the one who will have that conversation, start here" beats "Buy it now!"
Length and formatting: Amazon's rules
From KDP's help pages on writing a book description and metadata guidelines, read October 21, 2026:
| Rule | What KDP says |
|---|---|
| Recommended length | Aim for a 150-word paragraph with sentences that are easy to scan. |
| Hard limit | 4,000 characters, including HTML tags. Bolding a four-letter word adds seven characters. |
| Allowed HTML | Line breaks (<br>), paragraphs (<p>), bold (<b>), italics (<em>, <i>), underline (<u>), headings <h4> to <h6>, and lists (<ol>, <ul>, <li>). <h1> to <h3> are not supported. |
| Spacing | Double spaces between words do not show. For an empty line, use two line breaks. |
| Not allowed | Reviews, quotes or testimonials; requests for reviews; phone numbers, email or mailing addresses, website URLs; price, availability or ordering information; time-sensitive information such as tour dates; advertisements or promotional material; spoilers; emojis; keywords or book tag phrases. |
So endorsements do not go in the description; in the US, Amazon Author Central has a separate Editorial Reviews feature. And "why now" has to be a reason inside the reader's life, never a deadline or a promotion.
Back cover vs online description
| Back cover | Online listing | |
|---|---|---|
| Room | Set by the trim size and what else is on the cover. Ask your designer how many words fit. | Up to 4,000 characters; about 150 to 200 words is the target. |
| Shares space with | Blurbs, a short bio, often a photo, the barcode. | The cover, reviews, the sample, the author page. |
| Praise | Blurbs you have permission to print. | Not allowed in the description. |
| Formatting | Whatever the designer sets. | Basic HTML only. |
Write the online version first, then cut it for the cover: keep the hook, the problem, the promise and one line on the author.
Example descriptions we wrote
Every description below was written by Scribe Media for this page, for an invented book by an invented author. None is quoted or adapted from a real book.
A weak and a stronger version
Weak (an example we wrote)
For a fictional book on stepping back from a small service firm, The Owner Can Leave.
"Dana Ruiz has more than twenty years of experience in professional services and holds an MBA. In The Owner Can Leave, she shares her insights on leadership, delegation, systems, culture and succession. Chapter one covers the history of small firms. Chapter two discusses delegation. Later chapters explore hiring, processes and exit planning. This comprehensive guide will help business owners take their companies to the next level."
What goes wrong: credentials first, chapter summaries instead of a promise, and words ("insights," "comprehensive," "the next level") that fit any business book.
Stronger (an example we wrote)
The same fictional book, rewritten.
"Your firm runs well. It just does not run without you.
If you own a design studio, an accounting practice or an agency of ten to forty people, you know the feeling: every client wants you on the call, every decision lands on your desk, and a vacation means checking email from the beach. You built a business, and it turned back into a job.
The Owner Can Leave shows you how to step out of the daily work without losing the clients who hired you. You will learn:
- which three decisions to hand off first, and how to tell who is ready for them
- how to introduce a client to a new lead without the client feeling dropped
- a one-page operating rhythm that keeps you informed without keeping you busy
Dana Ruiz ran her studio for twelve years before taking her first month away from it. This book is the system she built to make that month possible.
The longer you wait, the more the firm is built around you. Start before the next busy season decides for you."
Why it works: a hook the right reader recognizes, a reader defined by firm type and size, specific results, one matching credential, and a reason to start that is not a promotion.
Two more examples, by hook type
Question hook (an example we wrote)
For a fictional book on talking with patients, Say It So They Hear It.
"How much of what you told your last patient will they remember tonight?
Clinicians spend years learning medicine and little time learning to explain it. Say It So They Hear It gives doctors, nurse practitioners and physician assistants a simple method for the conversations that matter most: delivering a diagnosis, explaining a treatment choice, and checking that the patient understood.
Its author, a family physician, has taught communication to residents for a decade.
Your next difficult conversation is probably on tomorrow's schedule. Be ready for it."
Contradiction hook (an example we wrote)
For a fictional book on money conversations for couples, The Joint Account.
"Couples do not fight about money because they disagree on numbers. They fight because they never agreed on what the money is for.
The Joint Account is for couples who earn well, argue quietly and keep putting off the big conversations: the house, the kids' schooling, the parent who may need help, the year one of you wants to stop working. Written by a financial planner who has guided couples through those conversations for fifteen years, it walks you through six of them, one evening at a time, with the questions to ask and the mistakes to avoid.
Every year you skip them, the choices get narrower. Have the first one this week."
A fill-in template
Template
Hook: [One line the right reader recognizes: a question they ask themselves, a belief you contradict, or their situation in one vivid sentence.]
Reader and problem: If you are [who the reader is, specifically], you know [the problem, in their words]. [One sentence on what it costs them.]
Promise: [Title] shows you how to [the one concrete result the chapters deliver]. You will learn:
- [A specific result or tool]
- [A second one]
- [A third one]
Why this author: [Name] [the experience that earned this knowledge]. [One proof point you can stand behind.]
Why now and close: [The cost of waiting, or the moment the reader is in.] [A short line that sends them into the book.]
Fill it in, read it aloud, then rewrite every line in your own voice. Over 200 words? Cut the bullets first.
Mistakes that cost you the sale
- A summary instead of a promise. "Chapter three covers delegation" says what is in the book, not what it will do for the reader. Turn each topic into a result.
- Credentials first. Lead with the reader; the one credential that matters goes near the end.
- Vague benefits. "Unlock your potential," "transform your business." If a phrase fits any business book, replace it with something only yours delivers.
- Keyword stuffing. Strings of search terms read as spam, and KDP does not accept keywords or book tag phrases in the description. Use the separate keyword and category fields.
- Claims you cannot back. "The only book you will ever need," "doubles your revenue," a number with no source. Readers check, and reviews remember.
- Review quotes you do not have permission to use. Never print praise the person has not approved, on any version. On Amazon, leave quotes out of the description entirely.
Test it with five target readers
- Pick five people who match your reader from your Stage 1 profile, ideally people who do not owe you a kind answer.
- Show them the description cold, with the title and no explanation.
- Ask three questions. "Who is this book for?" "What would you expect to be able to do after reading it?" "Would you open the first chapter? Why or why not?"
- Find the gaps. Cannot say who it is for: sharpen the problem. Repeat a topic, not a result: rewrite the promise. A "maybe": fix the hook or the why-now.
- Write down their words. How a reader describes the book back to you often beats your version.
Revise, then test again with new people, alongside your title and subtitle, since readers see them together.
Further reading
The Scribe Method, Scribe's free book on writing and publishing, has a short chapter on how to write a book description that sells, with its four-step structure and tips on length and tone.
Common questions
How long should a nonfiction book description be?
Amazon's KDP help recommends aiming for a 150-word paragraph, and The Scribe Method suggests 150 to 200 words. KDP's hard limit is 4,000 characters, counting HTML tags.
Can I put reviews or blurbs in my Amazon book description?
No. KDP says it cannot accept reviews, quotes or testimonials in the description. In the US, Amazon Author Central has a separate Editorial Reviews feature for them. Blurbs you have permission to use can go on the back cover.
Should the back cover and the Amazon description be the same?
They should make the same promise, but the back cover has less room and shares it with blurbs, a bio and the barcode. Most authors write the longer online version first and cut it down for the cover.
Should a book description be written in first or third person?
Speak to the reader as "you" and refer to the author in the third person. The Scribe Method recommends the second person where you can. "In this book, I..." makes the description about the author instead of the reader.
Who writes the book description, the author or the publisher?
It depends on how you publish: traditional publishers often draft it for the author to review, and self-published authors write their own. Either way, the author checks every promise against the chapters.
Sources: Amazon KDP, Write a Book Description (first experience of the book; 150-word paragraph; first sentence; 4,000-character limit including HTML tags; supported tags; content not accepted); Amazon KDP, Metadata Guidelines for Books (30-second elevator pitch; content not accepted); Amazon KDP, Author Central (Editorial Reviews, US only); The Scribe Method, chapter 25, How to Write a Book Description That Sells (hook, problem, solution, invitation; 150 to 200 words; second person). All read October 21, 2026. All examples and the template were written by Scribe Media for fictional books and authors; none is quoted or adapted from a published book.