James D Keyser James D. Keyser earned his PhD from the University of Oregon. He has conducted rock art research across western North America and has authored more than 200 rock art publications including seven books. Among these are Indian Roc Art of the Columbia Plateau, The Five Crows Ledger: Warrior Art of the Flathead Indians, and Art of the Warriors: Rock Art of the American Plains. He taught anthropology at SUNY-Buffalo and the University of Tulsa before retiring from the U.S. Forest Service. He splits his time between homes in Oregon and Italy. Read More Read Less