ISBN issuers and publishing rights resources
Official ISBN agencies, copyright information, and author contract-help organizations.
How to choose
Find the ISBN agency serving your publisher location before buying or applying. For contracts and copyright, use guidance appropriate to your jurisdiction and situation.
Checks before committing
ISBN eligibility, prices, and legal-deposit requirements vary. Free Canadian ISBNs have residency and publication eligibility requirements. An ISBN does not register copyright, and general guidance is not individual legal advice.
Informational listings, not endorsements or quality ratings. Descriptions are checked against official pages, not through an independent service audit. Confirm current prices, service availability, and terms with the provider.