Robert A. Emmons, Ph.D. is Professor of Psychology at the University of California, Davis where he has taught since 1988. He received his Ph.D. degree from the University of Illinois at Urbana‑Champaign. He is the author of over 200 original publications in peer‑reviewed journals or chapters and has written or edited eight books, including The Psychology of Ultimate Concerns (Guilford Press), The Psychology of Gratitude (Oxford University Press), Thanks! How Practicing Gratitude Can Make You Happier (Houghton-Mifflin), Gratitude Works! A Twenty-One Day Program for Creating Emotional Prosperity (Jossey-Bass) and The Little Book of Gratitude (Hachette). A leader in the positive psychology movement, Dr. Emmons is founding editor and editor-in-chief of The Journal of Positive Psychology. His research focuses on the psychology of gratitude and joy as they relate to human flourishing. Professor Emmons speaks regularly at medical and psychological conferences and at public events. Dr. Emmons has received research funding from the National Institute of Mental Health, the John M. Templeton Foundation, and the National Institute for Disability Research and Rehabilitation. His research has been featured in dozens of popular media outlets including the New York Times, USA Today, U.S. News and World Report, Newsweek, Time, NPR, PBS, Consumer Reports, Wall Street Journal, Forbes, and the Today Show. He lives with his wife of 24 years, Yvonne and their two sons and two dogs in Davis, California.