A book blurb is a short description of a book, usually found on the back cover or inside flap of a book jacket. It is typically written by the author or publisher and is used to entice potential readers to purchase the book. The crossword solution for the term BOOK BLURB is BIO, which stands for biographical information. This type of information is often included in a book blurb, as it gives readers an insight into the author's background and experience.