John Stewart has worked in the fields of the sociology of science, theoretical immunology, cognitive science, and the philosophy of technology. His publications are notably on the IQ heredity–environment debate, genetic engineering, the evolution of the immune system, and the relation between genetics and biology as a science of life. Most recently he co-edited the book http://cepa.info?in=source&query=%22Enaction
: Toward a New Paradigm for Cognitive Science%22">Enaction: Toward a new paradigm for cognitive scienceStewart J., Gapenne O. & Di Paolo E. A. (eds.) (2010) Enaction: Toward a new paradigm for cognitive science. MIT Press, Cambridge MA.