Dallas Willard (1935-2013) was a Professor in the School of Philosophy at the University of Southern California in Los Angeles. He taught at USC since 1965, where he was Director of the School of Philosophy from 1982-1985. He also taught at the University of Wisconsin (Madison, 1960-1965), and held visiting appointments at UCLA (1969) and the University of Colorado (1984). His book The Divine Conspiracy was selected as Christianity Today's Book of the Year for 1999. His other books include The Spirit of the Disciplines (1988) and Renovation of the Heart (2002).