Edward Hallowell, M.D., is a board-certified child and adult psychiatrist, a world-renowned keynote speaker, and the New York Times bestselling author or co-author of more than twenty books, including Driven to Distraction (with John J. Ratey), which sparked a revolution in our understanding of ADHD. A graduate of Harvard College and Tulane Medical School, Dr. Hallowell was a Harvard Medical School faculty member for twenty-one years. A regular columnist for ADDitude magazine, he is also the host of the weekly podcast Distraction. He is the founder of The Hallowell Centers in Boston MetroWest, New York City, San Francisco, and Seattle. He lives in the Boston area with his wife and their three children.

John J. Ratey, M.D. is a clinical professor of psychiatry at Harvard Medical School. He is the author or co-author of numerous bestselling and groundbreaking books, including Spark, Driven to Distraction, and A User's Guide to the Brain. He lives in Cambridge, Massachusetts.