John F. Hoffecker is a fellow of the Institute of Arctic and Alpine Research at the University of Colorado, Boulder. He has conducted field research in Alaska and Eastern Europe and is the author of Desolate Landscapes: Ice-Age Settlement in Eastern Europe (2002); A Prehistory of the North: Human Settlement of the Higher Latitudes (2005); (with Scott A. Elias) Human Ecology of Beringia (Columbia, 2007); and Landscape of the Mind: Human Evolution and the Archaeology of Thought (Columbia, 2011).