Norman E. Rosenthal, MD, is internationally recognized for his contribution to the understanding and treatment of depression. He is a clinical professor of psychiatry at Georgetown University, a therapist in private practice, and the author of four books, includingThe Emotional Revolution. Dr. Rosenthal served for over 20 years at the National Institute of Mental Health as a researcher in psychiatry and psychobiology, and has been listed inThe Best Doctors in Americaand the Consumers' Research Council of America’sGuide to America's Top Psychiatrists.He is a sought-after speaker and lecturer, and has appeared on national television and radio programs, including Good Morning America,… Today, CBS News, and NPR'sFresh AirandAll Things Considered.