Bernard Bouanchaud,Rosemary Desneux,T.K.V. Desikachar
Go straight to the heart of yogic teachings! Too often, Westerners perform the yoga positions without considering the form's underlying philosophy and spiritual dimension. For the first time, in this new and elegant translation from the Sanskrit, all the sutras appear in an accessible question-and-answer format, along with special queries that encourage self-reflection. The result is a treasure trove of insight. 275 pages, 1 b/w illus., 6 x 9. 
Philosophy
The Essence of Yoga: Reflections on the Yoga Sutras of Patanjali