John Relethford, Anthropology, has published a chapter entitled “Human population structure and history” in the edited volume, A Companion to Anthropological Genetics, D.H. O’Rourke, ed. Wiley-Blackwell, pp. 123–135. This chapter is a summary of how anthropologists and geneticists use genetic data (DNA markers, blood cell markers, quantitative traits) to address questions of population structure (mate choice, isolation by distance, etc.) and population history (both the origin of our species as well as questions of regional origins).