The International Standard Book Number (ISBN) is a numeric commercial book identifier that is intended to be unique. [a][b] Publishers purchase or receive ISBNs from an affiliate of the …

The ISBN identifies the publisher as well as the specific book title, edition and format (hardback, paperback, ePub, PDF, Mobi, Audio…). Any variation of a book would require the use of a …

The 13 digit ISBN links to essential information used in sales tracking, retail inventory systems, library catalogs, bookstores, online stores, and for new digital editions for old books.

Find books easily using ISBN, title, or author searches. Search using ISBN-10 or ISBN-13.

An ISBN uniquely identifies your book, and facilitates the sale of your book to bookstores (physical and digital) and libraries. Using ISBNs allows you to better manage your book"s …

May 22, 2025 · An ISBN is a 13-digit number that acts as a unique identifier for a specific version of your book. It helps bookstores, libraries, distributors, and online retailers distinguish your …

Sep 30, 2025 · What is an ISBN? The International Standard Book Number (ISBN) is a uniquely generated number assigned to a published book that acts as a unique identifying number for it. …

Aug 13, 2024 · The International Standard Book Number, or ISBN, is a crucial component among these elements. Introduced over half a century ago, the ISBN system has become the …

Feb 19, 2025 · The International Standard Book Number (ISBN) is a 13-digit number that uniquely identifies books and book-like products published internationally. The ISBN is intended for a …

An ISBN is an International Standard Book Number. ISBNs were 10 digits in length up to the end of December 2006, but since 1 January 2007 they now always consist of 13 digits. ISBNs are …