Visit button: Front doors, awning, and windows of the Library Company brick building on tree-lined Locust Street.


Explore button: Diverse group of researchers working in Library Reading Room with books open on tables.


Donate button: Late 19th-century, well-dressed white women and girls standing in front of a large ornate gate.

For Scholars

For Scholars button: Black researcher in glasses studies a book with his finger on the text.

For Educators

For Educators button: Black and white teachers standing on front steps of the Library Company building Cassatt House.

Upcoming Events


11jul7:00 pm8:00 pmFIRESIDE CHAT: Almost Dead: Slavery and Social Rebirth in the Black Urban Atlantic, 1680-1807 Free

25jul1:00 pm2:00 pmFor the Common Good: Reviewing the Library Company’s First 150 Years

More upcoming events here.

The American Philosophical Society and the Library Company of Philadelphia, two eminent institutions based in Philadelphia, were founded by Benjamin Franklin to improve society through the advancement of knowledge. Recently, they have begun to explore the possibility of a closer formal relationship while retaining each institution’s distinct identity. They have entered these exploratory conversations guided by their history and shared missions. Their aim is to find ways to increase awareness of their valuable and complementary historic and contemporary collections, to improve access to them, to better support the research process, and to serve the community more fully.

Read more.

The reading rooms are welcoming all readers!

For text materials (first-floor reading room), walk-ins are welcome and appointments are optional. Click here to learn more.

For visual materials (second-floor reading room), appointments are required. Click here to learn how to make an appointment.

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