This article explores the collective works of Peter McLaren and his contribution to critical pedagogy within the field of education and beyond the academy. To understand how McLaren's work took a radical turn in the 1990s, the article traces the historical development of his praxis. In particular, McLaren's engagement with the postmodern Left and his response to developments in British educational Marxism are highlighted in this paper. Bringing Marxism, class analysis and politics back into the heart of education, McLaren has situated himself at the forefront of remaking critical pedagogy as a material force for social change. The resulting fusion has provoked a storm of controversy amongst the educational Left. Beyond this, however, has been the influence of critical pedagogy in social spheres beyond the university and academia, including the mass workers movement.