starting with the year 1400. This group is called the (AG SDD, Working Group for the Collection of German Imprints). The participating libraries and their collection periods are: Bayerische Staatsbibliothek in Munich (1450–1600) Herzog August Bibliothek in Wolfenbüttel (1601–1700) Staats- und Universitätsbibliothek Göttingen (1701–1800) Universitätsbibliothek Johann Christian Senckenberg in Frankfurt am Main (1801–1870) Staatsbibliothek zu Berlin—Preussicher Kulturbesitz in Berlin (1871–1912) Deutsche Nationalbibliothek in both Frankfurt/Main and Leipzig (1913–) German Music Archive The Deutsches Musikarchiv (DMA, German Music Archive) is the central collection of printed and recorded music and the music-bibliographic information centre for Germany. It is a Federal agency founded in 1970, tasked with collecting all music published in the country. Its precursor was the (1961–1969). The DMA moved to Leipzig in 2010, to be housed in an extension of the Deutsche Nationalbibliothek. Construction work began in 2006 and was completed in 2009. Formerly situated in Berlin-Lankwitz, the DMA constitutes a department of the German National Library (Deutsche Nationalbibliothek). Publishers of printed and recorded music in Germany are required by law (since 1973) to deliver two copies of every edition to the archive. One copy is kept at the DMA in Leipzig, the second is deposited in Frankfurt. German Museum of Books and Writing The German Museum of Books and Writing () is now hosted at the building in Leipzig. Founded in 1884 as the Deutsches Buchgewerbemuseum (German Book Trade Museum) it eventually made its way to the Deutsche Bücherei Leipzig in December 1925. It is the world's oldest museum of book culture and addresses both experts and the general public. With over one million items in the collection, it is one of the most extensive in the world. They offer a wide variety of services including physical and virtual exhibitions, guided tours, seminars and workshops. Building in Leipzig The main building of the German National Library in Leipzig was built 1914–1916 after plans of the architect Oskar Pusch. The impressive facade is 160 m long and faces the "Deutscher Platz" (German Plaza). The building was opened on 19 October 1916. The site of the library (near to today's Alte Messe) had been donated by the city of Leipzig, while Friedrich August III, King of Saxony provided the funds for the building. On the facade, the portraits of Otto von Bismarck, Johann Wolfgang von Goethe and Johannes Gutenberg are displayed. Statues represent Technology, Justice, Philosophy, Medicine etc. The central reading