A "dust jacket" is a protective covering that wraps around the outside of a hardcover book, typically made of paper and printed with colorful graphics, author information, and a brief summary of the book's contents. Some synonyms for "dust jacket" might include "book cover," "book jacket," "dust cover," "book wrapper," or "book slipcover." Each of these terms generally refers to the same protective layer that is designed to keep a book in good condition and also serve as a marketing tool to entice potential readers to pick up the book and give it a closer look.