Collection As of 2019, there were 6,236,619 items at the University of Warsaw Library and 40 faculty libraries of the University of Warsaw. The collection of the University Library itself consists of 3,393,209 items, including 2,200,073 non-serial publications, 782,064 periodicals and 407,511 items from special collections. The number of BUW readers in 2019 was 112,826.
Crispa In 2007 the University of Warsaw established its own electronic library. The resources available online mostly consist of
public domain materials and publications for which the university was granted license by the right holders. Until 2019 the electronic library operated under a short name "e-bUW". In September 2019 a new version was launched and since then the library is officially called Crispa.
BuwLOG – the library's blog In the years 1996–2013, over 200 issues of the "BUW Bulletin" - a periodical describing important moments in the life of the library were published. Until November 2010 the Bulletin was issued in paper and electronic form. Since December 2010 the Bulletin is issued only in electronic form. Since March 2014, librarians describe the library's reality, discuss and share their professional experience, and publish their own works at BuwLOG.
BUW for owls BUW for owls (pol. BUW dla sów) was an event at the University of Warsaw Library. For the two weeks preceding and during examination the library stayed open for students until 5 in the morning. BUW for owls was introduced before the winter session in 2010. The library remained open until morning for two weeks, except on weekends. The event was enthusiastically received by the students and then started taking place regularly: twice a year before the winter and summer examination sessions. The idea became popular with attendance reaching hundereds of users a night. In 2023 BUW for Owls was recognized by the
IFLA PressReader International Marketing Award for the strategic, innovative and successful approach to library marketing. From October 2023 the library was open around-the-clock all week long except some
holidays. After consultations with the university community, the opening hours have been changed in October 2025: the library is open from 7 am to 1 am. BUW for owls in a 24-hour mode takes place before and during the exam sessions.
Self-service mode In 2019, for the first time, the library was open without the librarians on site, in a so-called self-service mode. The change in the operating mode was a direct result of the evident demand of the university community for extended opening hours of the library during the summer months.
BiblioWawa – Warsaw Reciprocal Borrowing Programme BUW participates in a joint project of 7 Warsaw academic libraries, which provides the Warsaw academic community with convenient access to circulating library resources of the cooperating libraries. Warsaw Reciprocal Borrowing Programme was launched on 18 December 2017. Apart from BUW, the project is co-created by the following libraries of Warsaw's universities:
Maria Grzegorzewska University,
Józef Piłsudski University of Physical Education in Warsaw,
Warsaw University of Technology,
Cardinal Stefan Wyszyński University in Warsaw,
Medical University of Warsaw,
Military University of Technology.
BUW among international associations and organizations University of Warsaw Library is a member of the following associations and organizations: • AANLA – Association des Amis des Nouvelles du Livre Ancien; • CERL – Consortium of European Research Libraries; • IAC – International Advisory Committee of Keepers of Public Collection of Graphic Art; • IAML – International Association of Music Libraries; • ICAM – International Confederation of Architectural Museums; • IFLA – International Federation of Library Associations and Institutions; • LIBER – Ligue des Bibliothèques Europeennes de Recherche; • OCLC – Online Computer Library Center Global Council, EMEA Regional Council.
Theft of 19th-century records In October 2023 librarians found several Russian-language 19th-century records missing, intentionally replaced with placeholders by unknown perpetrators. Due to the incident, the head librarian Anna Wołodko, as well as deputy director of special records Katarzyna Ślaska got expelled from their respective offices. ==University gardens and architecture==