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, including The 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 in The Best Doctors in America and the Consumers' Research Council of America’s Guide 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's Fresh Air and All Things Considered.