Robert L. Leahy, PhD, received his doctorate from Yale University and completed a postdoctoral fellowship at the Center for Cognitive Therapy at the University of Pennsylvania, Philadelphia, where he worked with Aaron T. Beck. Dr. Leahy is a clinical associate professor of psychology in psychiatry at the Cornell University Medical College, founder and director of the American Institute for Cognitive Therapy in New York City, and editor of the Journal of Cognitive Psychotherapy. He is also on the Executive Committee of the International Association for Cognitive Psychotherapy. The author of Cognitive Therapy: Basic Principles and Applications, and Practicing Cognitive Therapy: A Guide to Interventions, he is currently completing a book on a cognitive therapy model of resistance, to be published by Guilford in Fall 2000.

Stephen J. Holland, PsyD, maintains a full-time private practice in Washington, DC. Previously, he was affiliated with the American Institute for Cognitive Therapy. He has taught classes for doctoral students at Columbia University and the American School of Professional Psychology, both in New York, as well as for professional audiences. His publications include chapters on cognitive-behavioral therapy, brief psychodynamic therapy, and theoretical integration.