At first, acquisitions were selected with the idea of expanding the Library’s expertise by reflecting the encyclopedic ideal that characterized the late 18th century. From the end of the 18th century to the present, the Library has continued to enrich its holdings with newly acquired or donated holdings aimed at maintaining the existing holdings and the subjects in which the Library wishes to specialize.
The description of the collections in the Library turns out to be the simplest system for understanding the characteristics of its holdings.
At present, only some fonds have retained a topographical identity; others, however, have long since been dismembered in accordance with an organized placement according to logical or functional criteria.
More in-depth studies on the history of the Library and its holdings can be found among its publications.