The vast and complex tragedy of Stalin's purges, culminating in the Great Terror, made victims of millions of Russians between 1932 and 1939. This book assembles and translates into English for the first time an astonishing array of formerly top secret Soviet documents from that period. Exposing to daylight the hidden inner workings of the Communist Party and the dark inhumanity of the purge process, these documents immeasurably deepen our understanding of an agonizing episode of Soviet history.