Robert Drennan received his AB from Princeton University and his MA and PhD in Anthropology from the University of Michigan. He was elected to the National Academy of Sciences of the U.S.A. in 2004. He is currently Distinguished Professor of Anthropology and Director of the Center for Comparative Archaeology at the University of Pittsburgh. His research focuses on the comparative analysis of early chiefdom communities around the world. He has carried out primary field research on early chiefdom communities in Mexico, Colombia, and China.