Definition & Meaning of "dust jacket"

What is a "dust jacket"?

A dust jacket is a removable cover that wraps around the outside of a hardcover book. It is typically made of paper and designed with colorful artwork, the book's title, author's name, and other promotional details. The dust jacket serves both protective and decorative purposes, helping to safeguard the book's cover from damage and enhancing its visual appeal on bookstore shelves. It often includes a summary of the book's content, author information, and sometimes reviews or comments.