Caleb W. Lack, PhD is an Associate Professor of Psychology at the University of Central Oklahoma. He is the author or editor of five prior books: Tornadoes, Children, and Posttraumatic Stress; Anxiety Disorders: An Introduction; Mood Disorders: An Introduction; Psychology Gone Astray; and Obsessive-Compulsive Disorder: Etiology, Phenomenology, & Treatment. In addition he has authored over 40 peer-reviewed journal articles and book chapters. Lack received his doctorate in clinical psychology from Oklahoma State University and has won numerous awards for his innovative teaching and research. Ou