on Kindlepreneur:

A book description is one of the most important tools in a book marketers arsenal. Next to the book cover and the title of your book, your book description (sometimes called the book blurb) is your most important selling point.

A bad book description will make your book look unprofessional and will likely lose you sales.

I’ve seen countless authors touch up their book description, only to find that their sales jumped up considerably after making just a few changes.

Follow some of the tips in this article, and you could end up with a book description that leaves your book flying off of the metaphorical shelves.