Part I. Internal politics -- 1. Totalitarianism and rationality -- A definition of totalitarianism -- Dynamics -- A rationalist totalitarianism? -- 2. Patterns of autocracy -- Autocratic tradition -- Totalitarian innovation -- Continuity and change -- 3. The nature of the Soviet system -- Organizational compulsion for ideology-action -- The party and the ideology -- Politics and social development -- The impact of external affairs -- Part II. Foreign affairs -- 4. Communist ideology and international affairs -- The nature of the ideology -- Its role and impact in international affairs -- Prospects of ideological erosion -- Sources of ideological vitality -- 5. The challenge of change in the Soviet bloc -- Transformation of the bloc -- Sino-Soviet relations -- The implications of change