Daniel J. Siegel, MD, is a Clinical Professor of Psychiatry in the David Geffen School of Medicine at the University of California, Los Angeles, where he is also the founding codirector of the Mindful Awareness Research Center. In addition, he is the executive director of the Mindsight Institute, which focuses on the development of mindsight—our human capacity to perceive the mind of the self and others—in individuals, families, and communities. Dr. Siegel has published extensively for both professional and lay audiences, including five New York Times bestsellers.