[1] The largest branch is the Central Library or OBA Oosterdok at the Oosterdokseiland, just east of Amsterdam Centraal station.

[8] The Central Library is open 7 days per week from 10 a.m. to 10 p.m. and the lending and returning of books is fully automated.

Not only does the OBA provide a large range of printing and copying facilities, but some other unusual features can be found in the library, such as two radio stations.

This Muizenhuis, or Mouse House, is the decor for the adventures of two curious mice called Sam and Julia.

Besides the Central Library or OBA Oosterdok, there are 25 branches in various neighborhoods of Amsterdam and in the villages of Diemen, Duivendrecht, and Ouderkerk aan de Amstel:[9]