From 1583 to 1712, the Dutch firm of Elzevier (sometimes written Elsevier or Elzevir), with additional offices in France and Scandinavia, published a wide variety of books, and notably small-format books, for circulation throughout Europe. Penn's collection of Elzevier imprints, a donation of E. B. Krumbhaar to which subsequent purchases have been added, comprises over 1600 volumes produced by the Elzevier firm, along with related publications.
The Lawrence J. Schoenberg Collection includes nearly three hundred manuscripts and documents ranging in date from ca. 1900BC to the 20th century, with particular focus on the eras of the Middle Ages and Renaissance.
Because of longstanding collection strengths in area studies as well as because of disciplinary trends recognizing philosophers outside of the traditional western canon, the Penn Libraries have a significant amount of material relating to philosophy and philosophers in East Asia, South Asia, the Middle East and Africa.