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.
Arizona State University
, ASU's libraries held 4.5 million volumes. The Arizona State University library system is ranked the 34th largest research library in the United States and Canada, according to criteria established by the Association of Research Libraries that measures various aspects of quality and size of the collection. The University continues to grow its rare special collections, such as the recent addition of a privately held collection of manuscripts by poet Rubén Darío.