Drs. C. Alexander and Annellen Simpkins have been involved with Eastern philosophy for over thirty years. They were first introduced to these ideas through the practice of martial arts which they began in the 1960s, and their interest continued to deepen over time. As psychologists they have specialized in studies of the mind as well as hypnosis. They are authors of numerous books on Eastern philosophy including a series on meditation: Principles of Meditation, Living Meditation and Meditation from Thought to Action, a historical and practical book on Zen entitled Zen Around the World, and the Simple series on different Eastern philosophies: Simple Zen, Simple Taoism, Simple Confucianism, Simple Buddhism, and Simple Tibetan Buddhism.