A blurb is a short promotional description or summary of a book, article, or other written work. It is typically found on the back cover or inside flap of a book and aims to attract potential readers by highlighting key themes, characters, or plot points. A well-crafted blurb can entice readers to pick up the book and learn more about it. Blurbs are often written by authors, publishers, or marketing teams and may include endorsements or quotes from notable figures in the literary world, such as authors or critics. They serve as a marketing tool to generate interest and encourage sales.