The International Standard Book Number (ISBN) is a unique identifier for books. An ISBN is not mandatory, and does not provide copyright on a work. It is used internationally across the book trade and library sector.

Apply for an ISBN

ISBN Agency
Level One, 607 St Kilda Road 
(PO Box 6509, St Kilda Road Central VIC 8008)
Melbourne Vic, 3004

Tel: +61 3 8517 8349
Fax: +61 3 8517 8368

Further information is available at Thorpe-Bowker's My Identifiers homepage.