Free Library of Philadelphia (Parkway Central) - one of the largest public library systems

The Free Library of Philadelphia's Parkway Central Library is the main branch of a municipal system that includes dozens of neighborhood branches and extensive research collections. The system is routinely cited as one of the largest public library systems in the United States by holdings, number of branches, and public usage. Parkway Central houses major special collections, reading rooms, and serves as the administrative center for the system. The institution plays a central role in Philadelphia's public and research library services.