ISBN stands for International Standard Book Number. It is a unique identifier assigned to each edition and variation of a book. This number is used by publishers, booksellers, and libraries for cataloging and ordering purposes.

ISBN stands for "International Standard Book Number", a unique identifier for books, intended to be used commercially. It was created in the UK in 1966 by the booksellers and stationers W.H. Smith and originally called Standard Book Numbering or SBN. In 1970 it was adopted as international standard ISO 2108.

International Organisations Research Journal was created in 2006.

International Community of Socialist Youth Organisations was created in 1921.

International Philatelic Libraries Association was created in 1996.