The Hoover Institution Archives hold important and extensive collections of sound recordings and moving images, with a particular emphasis on documentary and non-fiction broadcasting. Early 20^th century film footage is well represented by the Herman Axelbank collection (Russian revolution) and Charles E. Stuart papers (American engineers in the USSR). The post-World War II period is represented by the vast RFE/RL Broadcast records, the BBC World Service Radio Broadcast recordings, and the Firing Line and Uncommon Knowledge television interview series. The Commonwealth Club recordings are also a valuable resource for those studying world events. Many individuals’ collections also contain recorded tapes and broadcasts, including those of Soviet and East European television during the late 1980s and early 1990s, a period of exceptional change and interest.