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.
University of Oxford
The university maintains the largest university library system in the UK, and, with over 11 million volumes housed on of shelving, the Bodleian group is the second-largest library in the UK, after the British Library. The Bodleian is a legal deposit library, which means that it is entitled to request a free copy of every book published in the UK. As such, its collection is growing at a rate of over three miles (five kilometres) of shelving every year.