Friends Historical Library documents the history of the Religious Society of Friends (Quakers) and its principles, such as human rights, peace, and simplicity. The Library is a significant research collection for the history of the Mid-Atlantic, and it maintains the Swarthmore Historical Society Archives.

The Swarthmore College Peace Collection is the most extensive archives and research library in the United States focused on movements for peace around the world.  The collection primarily consists of the original records of peace organizations and the personal papers of peace activists.

The Swarthmore College Archives include records of the College as a corporation, its Board of Managers, key administrative offices, and academic units. It also holds student records and records of student organizations, classes, and alumni groups.

The Rare Book Room showcases a diverse collection of materials, including numerous rare book collections, significant alumni donations, and an expanding Book Arts & Private Press Collection of over 6,000 fine press and artists’ books. These works represent all aspects of the physical book, including bookbinding, typography, letterpress and offset printing, hand papermaking, illustration, and book design.