In the half century since its publication, The Structure of Social Action has emerged as one of the classics of the sociological tradition. At the present time, however, there is scarcely any agreement about the status of the book's argument among all those who still appeal to the volume. After 50 years, the vast scholarship generated by Structure is in disarray, with separate literatures existing for different aspects of the book and controversies present in all these literatures. This paper examines each major aspect of Structure: its (1) sociohistorical context, (2) writing style, (3) methodological argument, (4) account of the history of social theory, (5) analysis of action, (6) view of the social world, (7) perspective on the actor, (8) treatment of the problem of order, and (9) approach to voluntarism. The paper argues that, when Structure is embedded in the sociointellectual context where it was produced, and is interpreted as a "charter" intended to defend the science of sociology against forces ...