Book Blurb Generator

How to write a back-cover blurb

1. 1

   Say what the book does for the reader

   Not the table of contents: the problem the reader walks in with and what they can do when they finish. Two or three sentences is enough; the more concrete, the better the draft.

2. 2

   Name the reader and the tone

   "New managers at startups" and "warm, direct" give the copy a voice. Leave them blank and you get a neutral draft.

3. 3

   Pick a length

   Short for a slim book's back cover and the first lines of the listing, standard for most back covers and the Amazon description, long for a full cover or an expanded listing.

4. 4

   Rewrite in your voice, then grade it

   Change the sentences that do not sound like you and keep the structure. Then run the result through the book description scorer to check hook, length and call to action.

What a blurb that sells has in it

A reader gives the back cover about eight seconds. The blurbs that convert do four things in that time, and the generator is built to do them.

• The reader's problem first. Open with the situation they recognise, not with the author or the book's history.
• A named transformation. What they will be able to do, decide, or stop doing after reading. Specific beats inspiring.
• Proof of the method. One line on how the book gets them there: the framework, the stories, the experience behind it.
• A reason to buy now. The last sentence points forward: what changes Monday if they read it this weekend.

Frequently asked questions

How long should a book blurb be?

For the back cover of a paperback, 100 to 150 words reads well at the type sizes covers use. Amazon allows up to 4,000 characters in the description, but the first 150 to 200 words are what shows before the reader has to click "Read more", so the standard version here is written to carry the sale on its own and the long version extends it.

Is the back-cover blurb the same as the Amazon description?

Mostly. The same copy works in both places, and using the same text keeps your message consistent. The Amazon description can be longer and can carry a few bullet points or short paragraphs of formatting; the back cover cannot. Start with the standard blurb, use it on the cover, and expand it into the long version for the listing.

Should a non-fiction blurb be in second person?

Usually, yes. "You" puts the reader in the situation and makes the promise personal. Fiction blurbs are typically third person and present tense, focused on the protagonist and the stakes. The generator follows the topic you give it; say "novel" or "memoir" if the book is one.

Is this blurb generator free?

Yes. A few generations are free with no account; a free Built&Written account lifts the limit. A quick invisible bot check runs before each generation, which is what keeps the tool free for real authors.

Will the blurb sound like me?

Not yet. It is a first draft in a generic voice, structured the way blurbs that sell are structured. Keep the structure and rewrite the sentences in your own words; that usually takes ten minutes and produces something no template could. The description scorer will tell you if the rewrite lost the hook or the call to action.

Can I use this for the KDP description field directly?

You can paste the standard or long version into KDP's description field. Amazon's description supports basic HTML for bold text, line breaks and lists; add those in KDP's editor rather than here. Avoid claims you cannot support, other authors' names and pricing information, which KDP's metadata rules prohibit.