This series includes some 10,000 letters, telegrams, postcards and other communications received by Russell and his immediate associates over the years 1897 to 1956. The letters are arranged alphabetically by correspondent and then chronologically for each correspondent, with corporate entries and cross reference cards as described for the outgoing correspondence. Russell's colleagues often sought his opinion of their work, and some 175 manuscripts are interspersed with the incoming letters. Folders of correspondence which contain one or more manuscripts are labeled on the right side "Manuscript enclosed with correspondence". At the same time, there is a 3 x 5 yellow card for each manuscript which lists its author, title, length, date, and location. The yellow cards are arranged alphabetically by author in a file stored in the manuscripts catalogue.

The Photographs and Audio-Visual Series consists of photographs, microfilm, and sound recordings gathered by the editorial staff of the Papers of Woodrow Wilson. The photographs provide a visual complement to the papers gathered in this collection, and many were published throughout the 69 volumes of Wilson papers. The microfilm consists of reels ordered from repositories throughout the country and around the world, containing correspondence to and from Wilson, as well as reports from his administration, diaries, newspapers, and papers of individuals related to Wilson. The audio contains recordings of radio programs and seminars on the topic of Wilson, as well as some of his speeches.

Consists of personal and family correspondence as well as business and legal correspondence.

Contains books shelved by Derrida in his Studio, an addition to the house that served as Derrida's principal work environment from the time it was built in 2001 up to his death in 2004. Books are represented here as inventoried in 2011. Also includes books not inventoried in 2011 (hence presumably not shelved in the Studio at the time) but located in the Studio at the time of packing the Library for shipment to Princeton University Library.

Contains books shelved by Derrida in his Studio, an addition to the house that served as Derrida's principal work environment from the time it was built in 2001 up to his death in 2004. Books are represented here as inventoried in 2011. Also includes books not inventoried in 2011 (hence presumably not shelved in the Studio at the time) but located in the Studio at the time of packing the Library for shipment to Princeton University Library.

Consists of manuscripts, both bound and unbound, mostly oversize, and artwork/ephemera housed in a variety of oversize containers.

This series documents the composition and activities of the alumni, the Alumni Council, and other alumni organizations. A large section at the beginning of this series documents the activities of the Alumni Council (the University-sponsored administrative arm of the Alumni Association), including Princeton reunions. Other topics include alumni organizations, occupations, regional associations, and long alphabetical runs on doubtful alumni (those individuals whose alumni status is in doubt) and alumni families (families who have sent more than one member to Princeton or who have been deeply involved in the University).

The University Librarian series contains the records of the various individuals who have held the position and provide an overview of the Library's historical development from the vantage point of one of the few roles that have remained relatively static throughout the Library's entire existence. As the chief administrator of the Library, the University Librarian is involved to some extent in nearly every aspect of the institution's planning and evolution. This is especially true in the earlier years of the Library when activities later undertaken by separate departments were somewhat more centralized around the Librarian. Such diversity of purpose is represented in the University Librarian records themselves, which primarily contain correspondence, subject files, and other documentation relating to topics as varied as collection development, finances, fundraising, organizational and staff matters, and university policy. Please see subseries descriptions for further information regarding the individual subseries.

The General series contains documents, clippings, and correspondence about each decade in Princeton's history from its founding until the present. The series consists of material that can neither be filed in any one other series nor in the chronologically arranged portion of the historical subject files. The files of Keeper of Princetoniana Frederic Fox, for example, include his notes on various aspects of Princeton life and history. Campus maps and general campus views can also be found here. Themed campus tours include views of Princeton in 1865, as well as tours focusing on trees and gargoyles.

Series 7: Secretaries of the University, is divided into several subseries, one for each individual to hold the office of secretary in order of their service.

Series 2 contains charters and bylaws and facsimiles of the same.

Series 1, Program Records, 1748-present, contains commencement, class day, and Service of Remembrance programs; pamphlets; schedules; valedictory and salutatory addresses; and newspaper clippings.

The first volume (1748-1796) is a gold mine of information about the personalities and activities of the young College of New Jersey. As these minutes date from the very beginning of the College, they address the multitude of issues and problems the trustees initially addressed. It was the era of the group decision, with the entire Board involved in solving every type of problem at their infrequent (two or three times a year) meetings. This volume is contained in two forms: the original volume (which does not circulate) and a typed transcript in two parts.

Series 1: Correspondence and Personal Material comprises the most voluminous series in Gillett Griffin's papers. Griffin was a prolific correspondent who often created several drafts of his letters and illustrated their salutations. Griffin filed correspondence in several different alphabetical runs. Some correspondence was also unfiled. The bulk of the letters were received by Griffin, but drafts or copies of his own letters are also present.

The Special Programs series documents the special programs run by the University, or by organizations closely associated with the University, including summer camps, summer programs, study-away programs, Outdoor Action, and an array of other programs. Academic programs are filed in Series 2 (Academics); programs closely associated with particular centers or institutes may be found in Series 8 (Centers, Institutes, and Research).

The Friends of the Princeton University Library series consists of material that documents administrative activities of the organization and records the many events that it conducted on behalf of the library. Please see subseries descriptions for further information regarding individual subseries.

The Student Life series consists of material about students, student culture, and the day-to-day life of Princeton students. The series particularly strongly documents information about student demographic groups (such as women students, international students, and the four classes), customs and pranks, agencies, governmental bodies, and housing.

The Committees series documents the work of the various Princeton committees, task forces, advisory councils, and commissions that have worked to determine or advise University policy, procedures, or selections. Some committees represented here consist entirely of faculty or entirely of administrators, but most include some combination of faculty, students, and administrators, while a few even include staff, alumni, members of the community, and outside experts.

The Materials Institute series consists of files of Materials Institute faculty.

The Mechanical and Aerospace Engineering series consists of files of Mechanical and Aerospace Engineering faculty.

The Military series consists of files of Military faculty.

The Modern Languages series consists of files of Modern Languages faculty.

The Molecular Biology series consists of files of Molecular Biology faculty.

The Music series consists of files of Music faculty.

The Other series consists of files of faculty without a departmental designation.

The Unknown series consists of files of faculty whose department is unknown.

The Multiple Departments series consists of files of faculty with more than one departmental designation.

The Philosophy series consists of files of Philosophy faculty.

The Photonics Center series consists of files of Photonics Center faculty.

The Physics series consists of files of Physics faculty.

The Politics series consists of files of Politics faculty.

The Princeton Environmental Institutes series consists of files of Princeton Environmental Institute faculty.

The Princeton Writing Program series consists of files of Princeton Writing Program faculty.

The Program in Dance series consists of files of Program in Dance faculty.