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Requesting an ISBN

• Instructions
  
• Request form
  
• Application form
  
• Corrections form
  

ISBN revision

• Revision
  
• Convert single ISBN
  
• ISBN-13 converter
  
• Calculate the check digit
  

Publisher register

• Register
  
• New Publishers
  

The International ISBN Agency

• Contacts
  
• ISBN User's Manual
  
• FAQ
  

ISBN (International Standard Book Number)

The ISBN is used for acquisition of publications, stock lists, invoicing, bookshop order systems, international and national union catalogues, bibliographies, and library circulation systems. The ISBN makes it easier to identify and handle publications.

ISBN is given to all books and book-like items. Therefore the physical format in which an item is presented or distributed does not matter. The physical format can be a printed book, an audiovisual or electronic recording. An individual ISBN is given to each book or other monographic publication, all its formats, and revised editions.

Contacts:

The Finnish ISBN Agency
The National Library of Finland
PB 26 (Teollisuuskatu 23)
FIN-00014 University of Helsinki

Tel. +358 9 191 44327
Fax +358 9 191 44341
E-mail: isbn-keskus(at)helsinki.fi

The Finnish ISBN Agency is open:

Mon 9-15, Tue-Fri 9-12