Contemporary theorists use the term social construction with the aim of exposing how whats purportedly natural is often at least partly social and, more specifically, how this masking of the social is politically significant. In these previously published essays, Sally Haslanger draws on insights from feminist and critical race theory to explore and develop the idea that gender and race are positions within a structure of social relations. On this interpretation, the point of saying that gender and race are socially constructed is not to make a causal claim about the origins of our concepts of gender and race, or to take a stand in the nature/nurture debate, but to locate these categories within a realist social ontology. This is politically important, for by theorizing how gender and race fit within different structures of social relations we are better able to identify and combat forms of systematic injustice. Although the central essays of the book focus on a critical social realism about gender and race, these accounts function as case studies for a broader critical social realism. To develop this broader approach, several essays offer reworked notions of ideology, practice, and social structure, drawing on recent research in sociology and social psychology. Ideology, on the proposed view, is a relatively stable set of shared dispositions to respond to the world, often in ways that also shape the world to evoke those very dispositions. This looping of our dispositions through the material world enables the social to appear natural. Additional essays in the book situate this approach to social phenomena in relation to philosophical methodology, and to specific debates in metaphysics, epistemology, and philosophy of language. The book as a whole explores the interface between analytic philosophy and critical theory.