Norman E. Rosenthal is the world-renowned psychiatrist, researcher, and best-selling author, who first described seasonal affective disorder (SAD) and pioneered the use of light therapy as a treatment during his twenty years at the National Institute of Mental Health. A highly cited researcher, he has written over 200 scholarly articles, and authored or co-authored ten popular books. These include Winter Blues, the New York Times bestseller Transcendence, and the national bestsellers The Gift of Adversity, and Super Mind. His latest book is Poetry Rx: How 50 Inspiring Poems Can Heal and Bring Joy to Your Life. Listed as one of the Best Doctors in America, he has practiced psychiatry for over four decades, and has coached people from all walks of life. Rosenthal has conducted numerous clinical trials of medications and alternative treatments, such as Transcendental Meditation, for psychiatric disorders. He and his work have been featured on Good Morning America, The Today Show, NPR and other national media.