Revolution on My Mind is a stunning revelation of the inner world of Stalin's Russia. We see into the minds and hearts of Soviet citizens who recorded their lives during an extraordinary period of revolutionary fervor and state terror. Writing a diary, like other creative expression, seems nearly impossible amid the fear and distrust of totalitarian rule; but as Jochen Hellbeck shows, diary-keeping was widespread, as individuals struggled to adjust to Stalin's regime.

Rather than protect themselves against totalitarianism, many men and women bent their will to its demands, by...