In addition to its function as a scientific institution of the University of Siegen, the University Library is also the only major scientific library in the surrounding area. As such, we have taken on the task of collecting, indexing and making available literature on the Siegerland region. In addition, we provide a selection of literature from the neighboring regions of Bergisches Land, Sauerland, Wittgensteiner Land, Dillkreis, Ederhochland and Westerwald.

Beyond extensive monographs, the profile of the Siegerland Collection also includes smaller works, such as club publications, self-published works, publications by churches, schools and authorities; we collect popular scientific publications as well as entertainment and popular literature (hiking guides, fairy tales and poetry books, schoolbooks, illustrated books, etc.) and as well as scientific presentations. The main focus is on history, geography, regional studies, art history, economics and cultural anthropology. Since 2000 we also offer the Jung-Stilling-Archive of the Jung-Stilling-Gesellschaft e.V. within the collection.

The collection is arranged according to a subject classification system in the library's stacks; individual titles can be searched for by subject using the corresponding system locations in our Katalog plus. To protect the collection, most of the volumes can only be used within the library.