ISBN

International Standard Book Number (ISBN)
It is a unique identifier used to identify books and similar products such as e-books and audiovisual materials. The number typically consists of 13 digits (since 2007) or 10 digits (before 2007), separated by dashes or spaces. Each ISBN represents a specific edition and format of the book, allowing for precise identification and cataloging. This number is commonly used by libraries, booksellers, and publishers to manage inventory and sales records.