International Standard Book Numbers (ISBN)
Reduced operations December 29–January 2
The CIP Program, as well as ISSN, ISBN and ISMN Canada will be operating at reduced capacity from December 29, 2025, to January 2, 2026, inclusively. Our response time is expected to be longer than usual during this period.
An International Standard Book Number (ISBN) is a 13-digit number that uniquely identifies each specific edition of a book or monograph from a publisher. ISBNs are used by publishers to sell and distribute their publications worldwide. ISBN Canada provides free ISBNs to eligible publishers and publications.
Services and information
Login to your ISBN account
Login to your account to view and update your logbook, assign and request ISBNs, edit your profile
Apply for an ISBN account
Apply to get an account so that you may request ISBNs
Account instructions
How to login, view and update your logbook and publisher information
About ISBNs
Eligible publishers, eligible items, parts of an ISBN
Canadian ISBN Publishers' Directory
About the directory, search for a Canadian publisher
Contact ISBN Canada
For help or more information contact ISBN Canada