Jagiellonian Library
Jagiellonian Library (, popular nickname "Jagiellonka") is the library of the Jagiellonian University in Kraków and with almost 6.7 million volumes, one of the biggest libraries in Poland, serving as a public library, university library and part of the Polish national library system. It has a large collection of medieval manuscripts, for example Copernicus' "De Revolutionibus" and Jan Długosz's "Banderia Prutenorum", and a large collection of underground literature (so-called "drugi obieg" or samizdat) from the period of communist rule in Poland (1945–1989). The Jagiellonian also houses the "Berlinka" art collection, whose legal status is in dispute with Germany.
Columbia University Libraries
Columbia University Libraries is the library system of Columbia University and is one of the top five academic library systems in North America and top ten largest libraries by volumes held. With 11.9 million volumes, over 160,000 journals and serials, as well as extensive electronic resources, manuscripts, rare books, microforms, maps, and graphic and audio-visual materials, it is the fifth largest academic library in the United States and the largest academic library in the State of New York. The services and collections are organized into 21 libraries and various academic technology centers, including affiliates. The organization employs more than 500 professional and support staff and is located on the university's Morningside Heights campus in New York City.