Robert W. Preucel is Professor and Chair of Anthropology at the University of Pennsylvania, Gregory Annenberg Weingarten Curator of the American Section at the University Museum, and Director of the Penn Center for Native American Studies. His most recent book is Archaeological Semiotics (Wiley-Blackwell, 2009 in paper). Stephen A. Mrozowski is the founding director of the Andrew Fiske Memorial Center for Archaeological Research at the University of Massachusetts, Boston, where he also serves as Chair of the Department of Anthropology. He has published more than sixty scholarly articles and monographs and is the author of The Archaeology of Class in Urban America (2006).