Modern social psychology reflects the impact of structuralist and post-structuralist conceptual crises in other academic disciplines, and Parker describes the work of Foucault and Derrida sympathetically and lucidly, making these important debates accessible to the student and discussing their influence. He assesses the responses from both mainstream social psychology and from avant-garde textual social psychology to the influx of these radical ideas, and discusses the promises and pitfalls of a post-modern view of social action.