APS buildings are open to staff and invited guests. The Library is undergoing a renovation project that will make many collections inaccessible. It is expected to be completed in early 2022. 

From the Blog

Marian Christ
Anne Downey
Michael Miller

The American Philosophical Society is the oldest learned society in the United States. Founded by Benjamin Franklin in 1743, it continues its mission of "promoting useful knowledge" through research, fellowships, and public outreach.