The library of the State Archives of Perugia is located in the ancient Dominican convent, dating back to the 13th century.
The bibliographic heritage, rich in editions of documentary sources, publications on archival, paleographic, historical, legal-institutional and local interest topics, preserves approximately 35,000 volumes, including two notable ancient funds: the Libraria della famiglia Fiumi Sermattei della Genga and that of the Perugian scholar Giuseppe Belforti.
Among the material present, we note: 2 incunabula, 762 16th century editions, approximately 600 17th century editions, 500 periodical titles, of which only about ten are current.
In addition to the Institute library, the book material is also located in the libraries of the Sections of Assisi, Foligno, Gubbio and Spoleto.