The State Library of Pennsylvania is one of the largest research libraries in the Commonwealth of Pennsylvania. The Library offers a comprehensive collection of materials on Pennsylvania history, newspaper archives, maps, and genealogy resources. It is also charged with maintaining a definitive collection of publications of all agencies of the Commonwealth, and serves as a regional depository for the United States Government Publications.

The Library is located within the Forum Building, and is open on weekdays except for state holidays. Tours of the building are available to the public.