The National Library of Finland is the leading research library in Finland. Administratively the library is part of the University of Helsinki. The National Library is responsible for preserving Finland's cultural heritage. Under Finnish law, the National Library is a legal deposit library and receives copies of all printed as well as audio-visual materials, except films, produced in Finland or for distribution in Finland. These copies are then distributed by the Library to its own national collection and reserves the collections of five other university libraries. Furthermore, the National Library has the obligation to collect and preserve materials published on the Internet.