: Purchase via the official MyIdentifiers site managed by Bowker.
To buy an ISBN, you should go directly to the official registration agency for your country. In the United States, is the only official source authorized to issue ISBNs. Purchasing directly from them ensures you are the "Publisher of Record," giving you full control over your book's metadata and distribution rights. 🛒 Where and How to Buy
: Platforms like Amazon KDP or Draft2Digital offer free ISBNs, but these are typically restricted to their specific platforms and list the distributor as the publisher. Pricing Breakdown (US)
: Avoid third-party "discount" resellers. While they may be cheaper, they often list themselves as the publisher, which can cause serious ownership and distribution issues later.
Buying in bulk significantly reduces the cost per number. ISBNs , so many authors buy a 10-pack to cover different formats (eBook, paperback, hardcover). Total Cost Price Per ISBN 1 ISBN 10 ISBNs 100 ISBNs 1,000 ISBNs (Data source: Bowker MyIdentifiers) Buy ISBNs | Bowker | Identifier Services
