Does your blurb sell the book?

What you get back

Your current blurb is scored from 0 to 10 with a note on what works and what does not. You also get two full rewrites in the same genre, each 120 to 180 words with a hook, clear stakes and an unresolved final question, and each scored the same way. The highest-scoring version is marked, and a one-line recommendation explains what your original lacks and which version to use.

Why you get two rewrites

Rewrite A and Rewrite B are two separate takes, and the report notes the angle each one takes, for example leading with the central relationship or with the danger. Seeing your book sold two ways is often more useful than either rewrite on its own, because it shows which part of your story is the stronger hook. Many authors end up combining the opening line of one with the stakes of the other.

Using the result on your listing

Put the strongest hook in the first line or two, since stores cut the description off behind a read-more link. Keep the voice matched to the book itself: a funny blurb on a dark thriller sets the wrong expectations. You can update your description at any time after publishing, so test a new version and watch whether your page converts better. CruxOne keeps your blurb with the book, ready for every store you publish to.

Frequently asked questions

What makes a good book description?

A one-line hook, two or three short paragraphs of stakes, and an unresolved question at the end, in 150 to 200 words. The first lines must work alone, since stores truncate the rest.

How long should a blurb be?

Around 150 to 200 words. Longer descriptions rarely convert better, and the opening lines do most of the work.

Can I change my blurb after publishing?

Yes, at any time, and updates appear within hours. Testing blurbs is one of the cheapest ways to lift sales.

Is the blurb tester free?

Yes, with a few runs a day and no signup to see your result and the rewrites.