'What a long, extraordinary process digging into the deepest secrets of the Gulag has been. Now, here is its history, fully, factually, and humanly effected for the present day by Oleg Khlevniuk.'- Robert Conquest, from the forward The human cost of the Gulag, the Soviet labor camp system in which millions of people were imprisoned between 1920 and 1956, was staggering. Aleksandr Solzhenitsyn and others after him have written movingly about the Gulag, yet never has there been a thorough historical study of this unique and tragic episode in Soviet history. This groundbreaking book presents the first comprehensive, historically accurate account of the camp system. Russian historian Oleg Khlevniuk has mined the contents of extensive archives, including long-suppressed state and Communist Party documents, to uncover the secrets of the Gulag and how it became a central component of Soviet ideology and social policy. Khlevniuk argues persuasively that the Stalinist penal camps created in