Bavarian State Library. The Bavarian State Library in Munich is the central Landesbibliothek, i. e. the state library of the Free State of Bavaria and one of Europe's most important universal libraries. With its collections currently comprising around 10.36 million books, it ranks among the best research libraries worldwide. Moreover, its historical stock encompasses one of the most important manuscript collections of the world, the largest collection of incunabula worldwide, as well as numerous further important special collections. The legal deposit law has been in force since 1663, regulating that two copies of every printed work published in Bavaria have to be submitted to the Bayerische Staatsbibliothek. This law is still applicable today. The Bayerische Staatsbibliothek furthermore is Europe's second-largest journals library. The BSB publishes the specialist journal Bibliotheksforum Bayern and has been publishing the Bibliotheksmagazin together with the Berlin State Library since 2007. Its building is situated in the Ludwigstrasse.