The Library Am Guisanplatz BiG – the Federal Administration and Armed Forces information centre – is also open to the general public. It has analog and digital specialist literature from a range of academic disciplines, including history, security, migration, politics and law. Today's BiG was formerly the Federal Military Library, founded in 1848 at the instigation of General Henri Dufour. Its older holdings are therefore of a military nature and include, for example, the Korea collection. The BiG also houses 9,000 digitised portraits from the collection of press photographer Walter Rutishauser and the Heberlein autograph collection, which contains the signatures of personalities such as Charles the Bold, Ronald Reagan and Neil Armstrong. The BiG regularly organises thematic events and exhibitions.