The basic source of information about the Library book collection is the Computer Catalogue of the Jagiellonian University Library Collections, which registers the collections of the Jagiellonian Library, the Medical Library of the Collegium Medicum, as well as all the faculty and institute libraries of the Jagiellonian University. Presently, the libraries catalogue interface operates on Chamo software.
The localisation code determines at which library the chosen volume is kept. The volume status determines whether the book has been ordered, reserved, or until when it has been lent. The books available on the premises only have the status „not available for lending".