The Princeton Institute for International and Regional Studies (PIIRS) is Princeton University's international and regional studies center. The PIIRS Records document the institute's activities and include material from its precursor organizations, the Yale Institute of International Studies and the Center of International Studies at Princeton University.

The Faculty Oral History Project was conducted by Richard Challener, Class of 1944, under the direction of Princeton University Archivist Ben Primer. The collection consists of audio files of interviews with faculty members of Princeton University about their experiences at Princeton.

Consists of Merchant's manuscript drafts, correspondence, photographs, inscribed books, and other materials relating to the Greek poet Helenē Vakalo (1921-2001), and his English translation of Genealogia. The collection also contains writings by Giannēs Ritsos, Kimon Friar, and materials of other authors and publishers.

Consists of microfilm strips and prints from microfilm of French botanist Auguste Plée's sketchbook of American and Canadian views and a long letter (with typed copy) to his family in France describing his journey in the United States and Canada in 1821 as a botanist for the Museum National d'Histoire Naturelle in Paris.

Consists of the printer's copy of the manuscript for The Intent of the Artist , edited by Centeno and published by the Princeton University Press in 1941.

Contains some miscellaneous papers of A. W. Bradford, governor of Maryland during the Civil War, but the collection consists primarily of speeches, correspondence, documents, and printed matter of Bradford's son, Samuel Webster Bradford (Princeton Class of 1875).

Consists of a collection of correspondence, writings, legal documents, and genealogical papers belonging to Martha Bradstreet (1780-1871) of Bennettsville, New York. Bradstreet inherited land in Oneida, Herkimer, and Delaware Counties, New York, through her step-grandfather, Major General John Bradstreet (1711-1774), and fought legal battles surrounding her land claims for much of the 19th century.

The Aurelio Cortés Collection of Reinaldo Arenas contains a small collection of letters and correspondence with Reinaldo Arenas and others, as well as typewritten drafts of Arenas' articles and essays, some of which are dedicated to Cortés, a personal friend. Also present are typewritten drafts of Cortés' own work on his friendship with Arenas.

This collection consists of reference files collected by Jeanette Mirsky for her book Sir Aurel Stein, archaeological explorer (1977). It includes original material passed on by the family as well as reproductions from a number of archival collections.

Consists primarily of travel diaries, scrapbooks, and photograph albums composed by railroad industrialist John Insley Blair and his family. There is also a small selection of letters of Clinton Ledyard Blair regarding a fight over Woodrow Wilson's reforms at Princeton University and Blair's relationship with the University's Board of Trustees.