The fonds consists of Gabriel Kolko's research files, publication files and correspondence, and personal files. The research and publication files contain notes, drafts and research material related to the writing of "The limits of power, 1945-1954," co-authored with Joyce Kolko, "Anatomy of war : Vietnam, the United States, and the modern historical experience". It contains personal and professional correspondence including letters received from and, in many cases, copies of letters sent to Barrington Moore Jr., Renato Constantino, Paul Mattick, Peggy Duff, Maria Jolas, Stanford Ovshinsky, Saburo Kugai, Norman Thomas, Noam Chomsky, Herbert Marcuse and Ercich Jacoby, among others. It includes correspondence with publishers, drafts of essays and/or articles written by Kolko, reviews of his work and personal correspondence exchanged between Kolko and his wife, Joyce.

Fonds contains correspondence relating to Nancy Pocock's career as a refugee worker, peace activist and jeweler as well as material relating to the Pocock family, to her personal life and publications and pamphlets collected by Pocock over the course of her career. While there was no discernable order overriding the entire fonds, a filing system was maintained for parts of certain series.

The fonds is arranged in the following series: