An American social psychologist has burrowed deeply into a phase of the East-West struggle that heretofore was analyzed most frequently with ""sarcasm...smug comparisons...optimism."" Into two classifications -- implicit, and explicit- he has placed many of the precepts by which Soviet leaders govern, rule, and control every aspect of the lives of Soviet citizens. He indicates where these precepts overlap, clash, conflict, or cancel each other out. Communist ""doubletalk"" has never been so clearly sifted and defined. Explicit statements are well documented from a wide range of fundamental source materials. Implicit formulations are corroborated by concise evidence with a minimum of assumption. Key point in the book is the motivation factor--Russians are convinced at an early age that the only true glory comes from working for the Revolution, no matter how dirty the job. Cantril is thorough, but he is also readable. His book can help us better understand the nature of Communist tactics.