Andrea F. Polard, Psy.D. is the author of A Unified Theory of Happiness: An East-Meets-West Approach to Fully Loving Your Life. Her background is rooted in the sciences as well as in humanistic, system-oriented, and cognitive-behavioral psychology, Zen Buddhism, mindfulness, and spirituality. Dr. Polard has studied at the Freie University Berlin, Germany, researching creativity as well as non-verbal expressions, especially the smile, utilizing the "Facial Action Coding System". She has become an independent researcher in the subject of happiness, a scholar of Eastern thought, and the founder of the Los Angeles Center for Zen Psychology, CA where she practices and teaches the new approach of Zen Psychology Therapy (ZPT).