The library catalogue contains all books, journals and other media (such as CD-ROMs, DVDs, eBooks) available in the library and informs you where to find them and if they are borrowed at the moment. Titles which are ordered but are not yet available for use are also included.

The catalogue contains the holdings of libraries in North Rhine-Westphalia and the northern part or Rhineland-Palatine including call numbers of books and the name of the owning library. Holdings of Siegen University Library are marked 467 SI: UB.

The KVK offers a parallel search in national and international library and bookseller's catalogues.

The informations system on media (MEDIAS) contains recordings available at the Zentrum für Informations- und Medientechnologie (ZIMT) of Siegen University as well as own productions of the ZIMT. Information on the accessibility can be obtained by the ZIMT (Mediathek).