Remembered by many as the Soviet leader who banged his shoe at the United Nations, Nikita Khrushchev was in fact one of the most complex and important political figures of the twentieth century. Complicit in terrible Stalinist crimes, he managed to retain his humanity. His daring attempt to reform Communism--by denouncing Stalin and releasing and rehabilitating millions of his victims--prepared the ground for its eventual collapse. His awkward efforts...