The updated version of Collins's critically-acclaimed Three Sociological Traditions, this text presents a concise intellectual history of sociology organized around the development of four classic schools of thought: the conflict tradition of Marx and Weber, the ritual solidarity of Durkheim, the microinteractionist tradition of Mead, Blumer, and Garfinkel, and--new to this edition--the utilitarian/rational choice tradition. Collins, one of the liveliest and most exciting writers in sociology today, traces the intellectual highlights of these four main schools from classical theories to current developments, introducing the roots of sociology and indicating the areas where progress has been made in our understanding, the areas where controversy still exists, and the direction in which sociology is headed.