The International Standard Book Number is one of the best-known identification systems in the world. There are 151 national or regional ISBN agencies and ISBN is used in over 200 territories across the world. The International ISBN Agency is privileged to hold the position of registration authority for an identifier that is ubiquitous and enduringly well-used.
It is also worth noting how longstanding the ISBN is as a part of the publishing landscape. Standard Book Numbering is well over 50 years old. Indeed, we documented the 50th anniversary of the advent of Standard Book Numbering...