To buy ISBNs from this site, you must be based in the UK, Ireland or a British Overseas Territory. If you are based elsewhere, you can find your national ISBN Agency on the International ISBN Agency’s website here
If you are going to publish only one book in only one format, the single ISBN will be enough. If you plan to publish more than one book, or to publish a revised edition of the original, or if you are going to publish your book in different formats (such as paperback and e-book), you will need a different ISBN for each version and each format, so ten ISBNs would be more suitable. Unused ISBNs remain valid indefinitely.
NB If you are using this site for the first time you need to register before you can purchase, regardless of whether you have purchased ISBNs offline in the past via the ISBN Agency for UK & Ireland.
All prices are inclusive of UK Standard Rate Value Added Tax
If you want to purchase larger quantities or to discuss your requirement in more detail, please email us at email@example.com
Publications that are monographic (one-off publications, not periodicals or serials), text-based (or predominantly text-based) and available to the public are considered eligible within the scope of the ISBN Standard.
Examples of the types of publication that qualify for ISBN:
Any publication that is without a defined end should not be assigned an ISBN. For example, publications that are regularly updated and to continue indefinitely (such as journals, serials, magazines, newspapers, updating loose-leafs, updating websites) are ineligible for ISBN.
Some examples of products that do not qualify for ISBN: