The International Standard Book Number (ISBN) is a unique international identifier for monographic publications. Published as an international standard (ISO 2108) and in wide use since the 1970s it has been adopted in over 160 countries. Assigning an ISBN enables not only each publication to be uniquely identified but also rich product metadata to be associated with a particular publication record as well as the accumulation of sales data by specific title, edition and format. ISBNs can be readily displayed as machine readable bar codes.
EDItEUR provides management services for the International ISBN Agency.