Consists of over 3000 miscellaneous items of primarily American literary, historical, and political figures, including business and personal letters, manuscripts, drawings, photographs, and official documents.

This collection contains broadside playbills from the United States, England, and Europe.

Collection of ephemera relating to the marketing of books, consisting of prospectuses, adverts, catalogs, etc.

The Historical Subject Files Collection documents Princeton University history and related topics from 1746 to the present. The collection consists of documents in almost every two-dimensional format: articles, books and booklets, clippings, correspondence, memoranda, non-photographic images, notes, pamphlets, posters, and reports.

The Historical Photograph Collection: Alumni Series consists of formal portraits of Princeton University alumni arranged chronologically by class year.

The Princeton University Publications collection contains issues of nearly 150 different periodicals published by the university and related organizations, as well as a few items published by others about the university, that have not been cataloged individually.

Since its first class of six graduates and one honoree in 1748, Princeton University has awarded over 80,000 diplomas. This collection contains 213 original diplomas and photostats, including executed diplomas as well as blank, sample or spoiled diplomas.

The General Manuscripts Collection consists of manuscripts and small collections of papers and records which are related in some way to the history of Princeton University. While most documents in the General Manuscripts collection were produced by alumni or student organizations, there are several documents produced by trustees, faculty, and other members of the University community.

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.

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.

Consists of the personal library of French philosopher Jacques Derrida and members of his household.

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.

This collection consists of offprints of articles written by Princeton alumni and faculty; however, in some instances the articles are written about an individual alumni or faculty member. The offprints generally consist of journals, published articles, speeches, lectures, sermons, memorials, and articles from scientific journals and magazines.

The Princeton University Library Collection of Historical Subject Files, Grounds and Buildings contains information relating to the buildings, grounds, and architects of Princeton University. The collection also includes information on the development of the campus and the various chronologies of construction and land acquisition that have been gathered.

The Syllabi and Course Materials Collection brings together original materials from the university archives that document the content of classes taught at Princeton University.

The course examinations collection consists of examination questions administered to applicants, undergraduates, and graduate students at Princeton University.

Consists primarily of material relating to Ohio farmer Luzern Humphrey's overland journey from Kanesville, Iowa, to the Oregon Territory in 1852, his life there through 1853, and his return to Iowa in 1854, including his journal and 51 letters to his wife in Ohio. Also included are some papers relating to the family of William Miller, the founder of Adventism.

Consists of a closed collection of more than 5,000 Western Americana photographs, consisting mostly of documentary photographs of the Trans-Mississippi West from the late 1860s to early 1900s. Subjects include American Indians (especially studio portraits), natural wonders, cities, towns, buildings, and economic activities (mining, railroads, logging, and agriculture). Some photographs relate to the Indigenous populations of Mexico and Central America. The dimensions, physical formats, and photographic processes of the photographs vary widely.

This collection contains various songbooks printed for Princeton University including bound volumes and small booklets. Among the former is a nearly complete series of the Carmina Princetonia. There is also a second series dedicated to sheet music comprising various songs written for Princeton University, including many pieces written by alumni.

The Campus Life series contains photographs documenting aspects of life as experienced by students, faculty, and staff at Princeton University.