Summary: 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. In this 2-part interview, he discusses his new book, Poetry Rx, which illuminates the power of poems to heal, inspire and bring joy to people’s lives.