Unless the socialist societies of the East adapt their system to the scientific-technological revolution, as the West has done, they will remain caught in the twentieth century. This is the theme of Silviu Brucan's book on the crisis of world socialism. He contends that these countries are at the crossroads and must make some changes in their political ideology or they will perish. This insightful book written by a veteran communist living in the East, will interest anyone concerned with Soviet studies, Slavic studies, political economy, Marxism, Communism, political sociology, and East-West relations.