What a blurb has to do
A blurb isn't a summary. It's a sales pitch that makes a browser want to know what happens next — or believe this book will solve their problem. Readers decide in seconds, so every sentence has to earn its place.
A simple structure for fiction
- The hook — one line that sets up the situation or the question. "Every lantern in Wyke has been lit for three hundred years. Tonight, one goes out."
- The character and their want — who we're following and what they're after.
- The obstacle and the stakes — what stands in the way and what they'll lose if they fail.
- The closing question — leave the reader needing the answer. Never reveal the ending.
Write in present tense and third person, even if the book is first person. Name no more than two characters, and skip subplots.
A simple structure for non-fiction
- The problem — in the reader's words. "You've tried every budgeting app. You still don't know where the money goes."
- The promise — what changes after reading.
- The proof — why this approach or author is credible. Keep it factual: no invented awards or numbers.
- What's inside — three to five concrete takeaways, often as bullets in the Amazon description.
Blurb, description, hook: where each one goes
The back-cover blurb is the 100–200 words on a paperback's back cover. The store description on Amazon usually starts from the blurb and adds a bold headline, a few bullets or a "perfect for readers who love…" line. The hook is a single sentence for the top of the cover, ads, social posts and your newsletter. Write the blurb first; the other two are easier once it exists.
Make the AI draft yours
- Swap generic for specific. "A dangerous secret" becomes "the ledger her father burned". Specifics sell; vague ones don't.
- Cut the throat-clearing. Start at the most intriguing sentence, even if that means deleting the first one.
- Check the tone matches the cover. A cheerful blurb on a dark cover confuses buyers.
- Read it aloud, then read three blurbs from bestsellers in your genre and compare the rhythm.
Common mistakes
- Too many names and places. Readers can't hold them yet.
- Telling them the theme. "A story about grief and redemption" tells; a glimpse of the grief shows.
- Spoilers. If it happens after the midpoint, it doesn't go in the blurb.
- Review quotes you don't have. Only quote genuine reviews, with permission — and check the store's rules first.
Turning your blurb into an Amazon description? Format it with the KDP description formatter. Still naming the book? Try the title generator.