The Class Records consist of a diverse set of materials documenting the history and activities of Princeton University classes during their time as undergraduates and as alumni. In the collection are correspondence, newsletters, publications, photographs, and memorabilia, all of which pertain to a particular Princeton University graduating class and its members.

The Student Correspondence and Writings Collection contains original materials from the university archives that document aspects of student life as experienced by students at Princeton University.

Since its introduction in the mid-1920s the senior thesis has been a core element of the undergraduate curriculum at Princeton University. The collection contains the senior theses of Princeton undergraduates.

This collection contains over 1,800 items including mugs, pipes, canes, banners, hatbands, pins, jewelry, and other material collected by many individuals that document reunions, sporting events, student traditions, and other aspects of University life.

The James A. Baker III Oral History Project is a joint project run by the Seeley G. Mudd Library at Princeton University and the James A. Baker III Institute for Public Policy at Rice University. The collection consists of transcripts and audio files of interviews with individuals who knew and worked closely with James A. Baker III during his career in politics and public service.

The Princeton University Library is one of the foremost university libraries in the world. With collections totaling over 12 million volumes, manuscripts, and nonprint items spread across fifteen buildings, the Princeton University Library system serves not only the Princeton University community but the world at large. The Princeton University Library Records consist of the files of the University Librarian and other Library administrators and departments, as well as of the Friends of the Princeton University Library. Materials in the record group include correspondence, reports, publications, clippings, minutes, press releases, proposals, statistics, photographs and other audiovisual materials, and microfilm. The records document the Library's day-to-day operations as well as its involvement with other departments on campus, other college and university libraries, and library users.

This collection of Peruvian ephemera contains flyers, pamphlets, and reports, as well as magazines and serials.

This collection contains pamphlets, bulletins, evangelical tracts, serials, booklets, and flyers published or distributed by non-denominational Christian organizations in Cuba.

This collection contains Catholic Church materials from Cuba. Types of material included are bulletins, evangelical tracts, religious serials, as well as instructional items, pamphlets, and flyers. The publications are mostly from La Habana and the provinces of Camagüey, Santiago de Cuba, Cienfuegos, Ciego de Ávila, Holguín, Santa Clara, and Pinar del Río. A handful of non-Catholic items published by the Sacro Arzobispado Ortodoxo Griego in La Habana are also included.

This collection of religious ephemera comprises materials from all over Latin America, with the exception of Cuba. While the date range covered in this extensive collection spans 165 years, the bulk of the items was published between 1960 and 2010.