With the clarity exhibited in his earlier books, (The Prophet Aimed; Russia: What Next?, and Stalin: A Political Biography) Isaac Deutscher, a well-known British political scientist, discusses in essay form, the dynamics of Soviet society. Focussing primarily on the post-Stalin era, Mr. Deutscher covers such subjects as the changing intellectual and scientific climate, Krushchev's denunciation of Stalin, what the de-Stalinization process means in terms of egalitarianism and freedom, the New Five Year Plan. Included in the collection are some historical essays dealing with the Revolution per se, its similarities and dissimilarities to the French Revolution, Mr. E. H. Carr as Historian of the Bolshevik Regime, etc. At the personal level, Deutscher examines the misgivings, doubts, self-recriminations of the ex-communist, the person who dissents from and renounces what was formerly an integral part of his life. The essays are well-written and are predicated on a comprehensive understanding and critical evaluation of Soviet affairs.