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 letters NUK in black and white surrounding by a broken black box

    The International ISBN Agency is pleased to announce that the ISBN Users’ Manual is now available in Slovene. We are very grateful to Majda Kotnik-Verčko and to our former director Alenka Kanič from the Narodna in univerzitetna knjižnica (NUK) in Ljubljana for arranging this translation. You can also view the same document on the...

  • 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...