Robert J. Sharer is Shoemaker Professor in Anthropology at the University of Pennsylvania and Curator of the American Section at the University of Pennsylvania Museum. He has published over 100 scholarly articles, and several monographs reporting the results of his archaeological research, including a three-volume Chalchuapa report (1978), and a one-volume Verapaz report (1987). He is general editor of the Quirigua Reports, with four volumes published (1979, 1983, 1993, and 2007), and general editor of the forthcoming Early Classic Copan Acropolis Reports. He has co-edited five books, including Regional Perspectives on the Olmec (1989) and Understanding Early Classic Copán (2004), and… is the author of Quirigua: A Classic Maya Center and Its Sculpture (1990), Everyday Life in Maya Civilization (1996), and three editions of The Ancient Maya, the most recent a completely revised work in collaboration with Loa P. Traxler.