National and University Library Zagreb

National and University Library in Zagreb (Croatian: Nacionalna i sveučilišna knjižnica u Zagrebu, NSK; formerly Nacionalna i sveučilišna biblioteka u Zagrebu, NSB) is the national library of Croatia and central library of the University of Zagreb.

The national library was founded in 1607. Its primary mission is the development of the national literary corpus. It has around 2.5 million books.

More information on the Wikipedia page