Patrick Fanning is a professional writer in the mental health field. He is the author of Visualization for Change and Lifetime Weight Control and coauthor of nine self-help books. Matthew McKay, Ph.D., is the clinical director of Haight-Ashbury Psychological Services in San Francisco. McKay is the coauthor of twenty popular books, including The Relaxation and Stress Reduction Workbook, Self-Esteem, When Anger Hurts, Prisoners of Belief, and several professional titles. Additional books written by the authors include The Addiction Workbook, Self Esteem Companion, Thoughts & Feelings, When Anger Hurts Your Kids, and Couple Skills, all New Harbinger classics.