Paul Moes (PhD, Texas Christian University) is professor of psychology at Calvin University in Grand Rapids, Michigan. He previously taught at Dordt College for eighteen years. He writes about Christian approaches to understanding brain function, personal responsibility, and human nature. Blake Riek (PhD, University of Delaware) is professor of psychology at Calvin University in Grand Rapids, Michigan, where he has taught since 2007. His two major lines of research are the psychology of forgiveness and prejudice and bias.