Università Cattolica has one of the largest libraries at national level and can provide its lecturers and researchers with access to a large book heritage and databases of great interest for research.

Yewno Discover, for example, is an extremely innovative tool, which offers the possibility to carry out highly personalised research based on one's own interests and individual skills. With Yewno Discover, it is possible to carry out interdisciplinary and targeted research among millions of documents of academic quality, obtaining interactive concept maps that promote the discovery of relationships between concepts, introducing innovative elements in research.

Scopus, the bibliographic database containing, in total, indexes and abstracts of about 18,000 journals, mostly peer-reviewed, of about 5,000 international publishers. Scival, which makes it possible to produce comparative reports on publications worldwide. WOS (World of Science), the multidisciplinary database that contains a huge heritage of bibliographic and citation data worldwide.