The International ISBN Agency

Easily recognisable as the identifier for all kinds of books, the International Standard Book Number is key to an efficient and effective book supply chain.

The International ISBN Agency is the registration authority for the Standard on a global basis. 

Focus on

  • Users' Manual in Maltese

    We are delighted to announce that the ISBN Users’ Manual is now available in Maltese. We wish to provide our sincere thanks to Mark Camilleri and Joseph Debattista at the National Book Council for their hard work in providing this latest translation.

    This means that the latest edition of the Users' Manual is now available in 15 languages. Joining...

  • Gold 50 Anniversary logo

    In the book world, we’ve come to take International Standard Book Number (ISBN) - that 13 digit number found on the copyright page or back of a book - for granted. We may not need to understand how the number is made up, but we know it’s a number that identifies a book and that it somehow makes ordering and sales more accurate and efficient.

    In the 1960s publishers wanted to improve their efficiency and profitability, but how could they introduce automated order processing and inventory control systems, when the products could not be consistently and reliably identified? Giving...