German National Library

The German National Library (German: Deutsche Nationalbibliothek or DNB) is the central archival library and national bibliographic centre for the Federal Republic of Germany. Its task, unique in Germany, is to collect, permanently archive, comprehensively document and record bibliographically all German and German-language publications from 1913 on, foreign publications about Germany, translations of German works, and the works of German-speaking emigrants published abroad between 1933 and 1945, and to make them available to the public.

More information on the Wikipedia page

The English language version of the website is