The Gulag entered the world's historical consciousness in 1972, with the publication of Aleksandr Solzhenitsyn's epic history of the Soviet camps, "The Gulag Archipelago." Applebaum has undertaken a fully documented history of the Soviet camp system, from its origins in the Russian Revolution to its collapse in the era of glasnost. Two 16 page photo inserts. 592 pp. 35,000 print.