Bazhanov and the Damnation of Stalin, by Boris Bazhanov

Conversations with Stalin, by Milovan Djilas

Let History Judge: The Origins and Consequences of Stalinism, by Roy Medvedev

Molotov Remembers: Inside Kremlin Politics, by V. M. Molotov

Lenin, Trotsky, and Stalin: The Intelligentsia and Power, by Philip Pomper

Stalin: The Man and His Era, by Adam Ulam

Stalin: Triumph and Tragedy, by Dmitri Volkogonov

This I Cannot Forget: The Memoirs of Nikolai Bukharin's Widow, by Anna Larina