The papers consist of correspondence, diaries, legal documents, speeches, writings, printed material, photographs, and audiovisual materials that document the career of Arthur Liman. The papers emphasize the 1987 Iran-Contra hearings but also document many of Liman's other professional activities, including the Attica Prison uprising investigation and the Michael Milken trial. The papers contain an extensive collection of audiotapes and videotapes featuring conversations with and interviews of Liman.

Series 7 includes audiotapes in cassette and microcassette format and videotapes in VHS and U-matic format. The series is arranged by format and chronologically within each format. The tapes in boxes 41, 42, and 43 are largely recordings of private conversations during Arthur Liman's Iran-Contra assignment and are the audiocassette tapes with the greatest research value. The tape in box 43 is the audio version of Liman's Iran-Contra diary, the transcript of which is in Series I. The majority of the microcassette tapes were recorded during the Iran-Contra hearings. The microcassette recordings capture Liman at his most candid regarding the Iran-Contra hearings and the Michael Milken sentence. The VHS videotapes in boxes 70, 72, 89, and 91 contain the most in-depth interviews of Liman.