The Textbook of Yoga Psychology - The Definitive Translation and Interpretation of Patanjali's Yoga Sutras (amazon.com)
Ashley Turner is creator of her innovative, upcoming Advanced Yoga Psychology Teacher Training. (mindbodygreen.com)
He specializes in yoga psychology, yoga and social responsibility, failure and progress in meditation, understanding and applying nonviolence, and yoga in daily life. (mountmadonnainstitute.org)