The International ISBN Agency

Easily recognisable as the identifier for all kinds of books, the International Standard Book Number is key to an efficient and effective book supply chain.

The International ISBN Agency is the registration authority for the Standard on a global basis. 

Focus on

  • The building where the International ISBN Agency is based

    In common with many organisations across the world, the current Covid-19 crisis is having an impact on the International ISBN Agency's operations. Please be advised that, until further notice, our offices in Russell Square will not be occupied and all staff will be working remotely. However, we would like to stress that staff members are otherwise working as normal and that the International ISBN Agency's functions are being performed with no interruption.

    Should you wish to contact the International ISBN Agency, please note that our telephone system is being accessed only...

  • An abstract image of books connected by a wire to South America on a globe

    ISBN (International Standard Book Number) is the key identifier for books in the supply chain; an ISBN uniquely identifies a specific book by a specific publisher in a specific format.

    The International ISBN Agency wishes to inform publishers, booksellers, libraries and other participants in the book supply chain in Brazil about forthcoming changes with regard to ISBN assignment. Starting 1 March 2020, the International ISBN Agency has appointed Câmara...