The library of the Friedrich-Ebert-Stiftung located at Bonn collects printed material about the history of labour movement and social history with a special emphasis on the working class and trade unionism. "At present the library stock contains about 600.000 volumes (books, brochures, periodicals) and more than 60.000 microforms (microfilms, microfiches). The annual growth is about 12.000 volumes. The library has 2.000 current periodical subscriptions, more than 1.000 historical and current periodical publications are available on microfilm." The web site offers access to the library catalog, the document delivery service and a digital library of grey literature.