One of the unique advantages of publishing in Canada is that International Standard Book Numbers (ISBNs) are administered directly by the federal government through Library and Archives Canada (LAC) rather than sold by commercial brokers like Bowker in the United States.
1. When Do You Need Separate ISBNs?
Under international bibliographic standards, every distinct physical format of your book requires its own unique 13-digit ISBN. For example:
- Paperback Edition: 1 ISBN
- Casebound Hardcover Edition: 1 ISBN
- Digital eBook Edition: 1 ISBN
- Audiobook Edition: 1 ISBN
2. Library and Archives Canada Legal Deposit
Canadian law requires publishers and self-publishing authors to submit two physical copies (or one digital master) of every newly published book to Library and Archives Canada within one week of release. This preserves your work in the national heritage archives and ensures your title appears in the Canadian National Union Catalogue (Amicus).
Book Writers Canada Research Desk
Prepared by our senior publishing strategists in London, ON. Providing transparent royalty analysis, formatting benchmarks, and legal guidance for modern authors.
