The Kaplan Collection documents commercial, social, religious, political, and cultural ties that connected Jews and the general public from the colonial era through the nineteenth century.
The Kislak Center holds several groups of printed material related to the Black Panther Party in the United States, including a substantial run of The Black Panther newspaper, along with broadsides and several books.
The Sydney S. Keil Collection contains over one thousand items from colonial Latin America, including books, pamphlets, broadsides, and maps. A particular focus of the collection is the religious history of Mexico in the colonial period. The collection was presented it to the Penn Libraries by Jeffrey D. Keil in memory of his father in 1986, and it continues to grow thanks to an endowment.