We operate a library with the possibility of borrowing Bulgarian literature, Bulgarian translations of world classics, scientific literature, dictionaries and textbooks in Bulgarian. Titles are divided into lists of fiction, educational literature, catalogues and periodicals, maps and guides.

Offering library services with a focus on professional literature.

Offering library services with a focus on earth science publications from around the world in both print and electronic formats. Free internet access is available.

The library collection consists of printed, electronic or digitised documents.

We operate a library focused on specialized literature. We collect books and journals in education and related fields of social sciences. Our collections include textbooks for primary and secondary schools from the 19th century onwards, educational journals from the 1830s onwards and children's literature from the late 18th century onwards.

We operate a library and an archive with professional literature. We focus on materials from the 19th century, but also works from earlier historical periods. We acquire, process and make available to users musical material in classical and electronic form. We carry out research. We ensure the preservation of musical materials.

We operate a library providing public library and information services with a focus on philosophy and related humanities disciplines. The library's collection includes unique units of domestic and foreign literature.

Offering library services focusing on economic literature. Available volumes of monographs, journals, grey literature, statistical and archival documents in microeconomics, macroeconomics, econometrics, financial economics and banking, transition economics and many other fields.

We offer library services with a focus on professional literature.

Offering library services with a focus on specialized literature.

A science library specialising in specialist literature in chemistry and related sciences. The library provides services to students, researchers and the general public through the chemTK integrated chemistry library housed in the NTK building.