The C.L.R. James Institute was founded by Jim Murray to document the writing and influence of James and his circle

This collection contains the personal and professional papers of Marxist scholar and editor Herbert Joseph Putz written under the pseudonym Erik Bert.

Correspondence, family and business papers. The most valuable part of this collection is his notes refuting various libel charges which were brought against him

The papers of Hubert Harrison, the brilliant and influential writer, orator, educator, critic, and political activist in Harlem during the early decades of the 20th century.

The Juan J. Linz papers contain correspondence, personal documents, awards, photographs, notes, writings, speeches, lectures and courses notes, research files, press coverage and interviews, and printed material, dating from 1920s to 2010. The materials also include one box of materials on Columbia Student Unrest in 1968. The collection provide an insight on Juan J. Linz's family and childhood as well as his education and his work as a political scientist and a professor.

Cataloged Correspondence (3 boxes) is for 1900-1918, but there are a few letters that go up to 1950 which are with the manuscript materials.

The collection includes drafts of his work, professional and personal correspondence, emails (both digital and in hard copy), notebooks, dream journals, heavily annotated books, lecture notes, teaching materials, photographs and ephemera. Several RBML collections already contain correspondence with Berman. For scholars, this collection will provide important new insights into the thought and work of a leading late-20th-century New York City intellectual. An important segment of the Marshall Berman papers consists of digital materials connected with his more recent work as a writer, scholar, and teacher. The files are currently stored on his home computer.

His information file of clippings, excerpts, and ephemera. Each item is carefully documented as to its place and date of publication. Many of these documentary markings are in a highly abbreviated form for which there is a key. The clippings are from such publications as THE AMERICAN MERCURY, ARBEITER-ZEITUNG, AVANTI, THE DAILY WORKER, THE HERALD TRIBUNE, L'HUMANITE, KOMMUNISTISCHE INTERNATIONALE, LE TEMPS, NEW MASSES, NEUER VORWAERTS, RABOTNIK, and many others. Much of the material is in various western European languages, but the majority is in English. The collection is arranged alphabetically by country and within these broad categories the material is either in a rough chronological arrangement or is grouped around specific topics. The clippings are not mounted but are placed loosely in a series of folders. Also included are two volumes of Nomad's essays entitled: THE ANARCHIST TRADITION AND OTHER ESSAYS; and, POST-MORTEMS AND POST-SCRIPTS. These anthologies of printed essays and photocopies of typescript essays were compiled by Nomad in 1967.

These records contain correspondence, artwork, organizational records, and a full run of issues published by The New Leader, a liberal magazine of news and opinion that operated from 1924 until 2006.

Correspondence, manuscripts, documents, lists, and subject files of the Mexican Communist Party (Partido Comunista Mexicano) from the 1950s. Included are organizational records of the national party as well as many local groups, and folders on a great range of topics including workers in the petroleum industry, teachers, relations with other national communist parties, finances, front groups, factionalism within the party, party conferences, party history, and biographical data.