Abstract: Records, mainly 1963-1993, of the Institute of Policy Studies (IPS), a left-wing think tank founded in Washington, D.C., in 1963 by Richard Barnet and Marcus Raskin. The records consist of administrative files; correspondence, writings, and subject files of individual fellows; and reference material. Senior fellows Richard Barnet, Saul Landau, Isabel Letelier and Marcus Raskin, and executive directors Robert Borosage and Diana DeVegh are most extensively documented, with less material about other members Robb Burlage, John Cavanagh, Barbara Ehrenreich, Chester Hartman, Paul Jacobs, Milton Kotler, Michael Moffitt, Sasha Natapoff, Orlando Letelier, Gareth Porter, Julia Sweig, Barbara Wein, and Roger Wilkins. Administrative records include Board of Trustees minutes; fundraising information; formal and continuing education programs; a library of brief writings and other papers by fellows and associates; and subject files including incomplete financial records, congressional seminar files, and fragmentary minutes of the Transnational Institute (TNI), an IPS subsidiary.