The National Library of Sweden has been collecting virtually everything printed in Sweden or in Swedish since 1661 – and since the late 1970s all audiovisual content on the Swedish market. Most of the latter public service material has been digitized; some three million media files are accessible through the Swedish Media Database.
The National Library is also a humanities research library that purchases scholarly literature in several languages. The library coordinate services and programs for all research libraries in Sweden and administer and develop LIBRIS, the national library catalog system. The National Library of Sweden is a state agency with a staff of some 350 people; offices are in Stockholm