Writing a book description

This guide is advice

Nothing here is a KDP requirement. The only hard rules for a description are the character limit and the limited formatting, covered in the description formatting guide. Everything below is craft advice: test it against what works in your genre.

Who reads it, and how

Most shoppers read a description on a phone, partly collapsed behind a “Read more” link, after they have already been drawn in by the cover and title. The description's job is to confirm that this book is the one they want. The first two lines do most of the work, because many people never expand the rest.

A structure that works for fiction

Fiction descriptions tend to follow a familiar arc:

• A hook: one line that states the central tension or promise.
• The setup: who the protagonist is and what they want, in two or three sentences.
• The stakes: what happens if they fail.
• A close: the genre signals and comparisons that tell the right reader this is for them.

A structure that works for non-fiction

Non-fiction readers are buying an outcome:

• The problem the reader has, in their words.
• What the book gives them: concrete outcomes, often as a short list.
• Why this author or approach: experience, method, or what makes it different.
• Who it is for — and, usefully, who it is not for.

Common mistakes

• Opening with background, a quotation or praise instead of the hook.
• Summarising the whole plot, including the ending.
• One long paragraph with no breaks.
• Claims you cannot support, such as “bestselling” for a new book — which Amazon's guidelines also prohibit.

Drafting and formatting

The description editor keeps your text to the tags Amazon accepts, counts characters against the 4000 limit, and previews how it will look on a product page.

Test, then revise

A description can be changed at any time. If a book gets visits but few sales, the description is one of the cheapest things to rewrite. Change one element at a time — usually the opening line — so you can tell what helped.