In the Libray you can find  about 1 million volumes, 674 incunabola, over 15,000 sixteenth-century publications, 452 manuscripts,  many autographs and letters, periodicals,  drawings and maps.  The Library's audiovisual and multimedia collection is constantly being increased


Some important collections are:

  • Collezione Giulio Casalini (History of Socialism)

  • Biblioteca Giuseppe Chiovenda (Law)

  • Collezione carducciana (By and about Giosue Carducci)

  • Collezione ciceroniana (By and about  Marcus Tullius Cicero, sec.18. e 19.)

  • Collezione deleddiana (By and about  Grazia Deledda)

  • Collezione Felibri (New Provencal literature)

  • Collezione leopardiana (By and about Giacomo Leopardi)

  • Donazione Schupfer (History of law)

  • Dono Grassi (Philosophy and religion)

  • Fondo Carlo Bernari (European literature and history)

  • Fondo Ettore De Ruggero (Archeology and epigraphy)

  • Fondo Ferri (Penal law)

  • Fondo Festa (Latin literature)

  • Fondo De Stefani (Claassic literature)

  • Fondo Isopescu (Rumanian literature)

  • Fondo Istituto nazionale di cultura fascista (Italian history 1922-1945)

  • Fondo Laura e Luigi Mazzonis (Italian literature sec.19.-20.)

  • and many others....