Sociologists in recent years have given much attention to the study of social and political classes and the problem of social change, yet their works have lacked a sense of history. This small book considers how the movement toward social equality which began in the 18th century has affected the social hierarchy in modern industrial societies, and how, in turn, it has been influenced by modern industry. Bottomore (Elites and Society, etc.) concentrates upon the differences between Western capitalist societies and the sovietized societies of Eastern Europe and points out that neither system is ""classless."" In explaining the changes in social stratification which have actually occurred, he raises the possibility that the abolition or even the decline of social classes may lead not to the creation of an egalitarian society, but to the development of a mass society in which the political elite has unbounded power.... Clearly written and documented, this is an incisive outline of the changing class structure. A fuller work is still to be written.