The Library of Suor Orsola Benincasa University was established in 1895. On June 27, 1974, it was renamed Biblioteca Erminia Capocelli (the Erminia Capocelli Library) in honour of one of the key figures in the University's history.

The Library initially focused almost exclusively on the humanities but has gradually expanded to include scientific disciplines, reflecting the growth of the University's academic programmes and research areas. The collection continues to grow, with new acquisitions organised around specific thematic themes. This process is underpinned by a rigorous and collaborative decision-making approach involving the Library's directors and administration, together with faculty and researchers. Such an approach ensures that a wide range of users - further enlarged by the Library's participation in the Share Consortium - have access to whole series of works of significant scientific value, particularly the Opera omnia of classical authors of all periods, forming an essential resource for research.

The Library's holdings currently consist of approximately 180,000 items of various types, including books, brochures, electronic documents, periodicals, and journals (around 1,800 publications, which can be consulted in the 'Sala Riviste' ('Periodicals Room'). It also contains numerous special 'Fondi' ('Archive Collections'), most of which have been constructed thanks to donations from distinguished scholars who have had, or continue to have, a particularly close relationship with the University over the years.

The Library also provides access (both in person and online) to digital platforms linking to monographic collections, databases, newspapers, and journals, etc., related to the disciplines of the University's three departments. A comprehensive list can be found here.

As a research support tool, users can access the Discovery EDS (EBSCO Discovery Service), which aggregates content from the Capocelli Library's OPAC and a wide range of bibliographic resources. The Discovery service, along with other EBSCO subscribed to by the University, can also be reached via the EBSCO app, available among the apps in the University's Google Workspace. Additional features are offered through the EBSCO Mobile App on both Android and iOS.