Matthew McKay, Ph.D., is the codirector of Families in Transition and the Haight Ashbury Psychological Services in San Francisco. He is coauthor of The Relaxation and Stress Reduction Workbook, Thoughts and Feelings, Messages, The Divorce Book, and Self-Esteem. He received his Ph.D. in clinical psychology from the California School of Professional Psychology. In private practice, he specializes in the cognitive-behavioral treatment of anxiety, anger, and depression.

Collaborators:
Peter D. Rogers, Ph.D., is the administrative director of the Haight Ashbury Psychological Services. A retired psychotherapist, and former chief of the chemical dependency program at Kaiser Permanente, he is also the coauthor of three popular self-help books.

Judith McKay, RN, received her BS in nursing at California State University, Hayward. Currently she works on an inpatient medical oncology unit at Alta Bates Hospital in Berkeley, California.