The ISBN identifier and the associated metadata (information on the book in question) identifies books intended for public use. Finland’s national ISBN Agency is responsible for issuing ISBN identifiers in the country. The Agency maintains the national publisher register and provides information about Finnish publishers for national and international use. The ISBN identifier is free of charge.
The ISMN is an identifier for publications of notated music. It is intended as a tool for publishing and selling notated music as well as for the use of music libraries. The ISMN is not a statutory identifier, but is in wide use by publishers as the ISMN identifies the music publication and its publisher. The ISMN identifier is free of charge.