Matthew McKay, PhD, is a professor at the Wright Institute in Berkeley, CA. He has authored and coauthored numerous books, including The Relaxation and Stress Reduction Workbook, Self-Esteem, Thoughts and Feelings, When Anger Hurts, and ACT on Life Not on Anger. He has also penned two fiction novels, Us and The Wawona Hotel. McKay received his PhD in clinical psychology from the California School of Professional Psychology, and specializes in the cognitive behavioral treatment of anxiety and depression. He lives and works in the Bay Area.
Joyce Meyer is the bestselling author of more than 100 inspirational books, including The Power of Simple Prayer, Approval Addiction, Power Thoughts and Battlefield of the Mind. Joyce's 'Enjoying Everyday Life' radio and television programmes are broadcast around the world, and she travels extensively conducting conferences.
Ken Mogi is a neuroscientist, writer and broadcaster based in Tokyo. He has published more than 30 papers on cognitive and neurosciences, and over 100 books in Japan covering popular science, essay, criticism and self-help. His books have sold close to 1 million copies.
Previous titles by the author: Rainbow Spirit Journeys and Spirit Medicine.