Power Yoga, Beryl Bender Birch's first book, is a great introduction to developing a strong asana practice. In Beyond Power Yoga, Beryl reminds us that true astanga yoga is about more than physical health; rather it includes ethical living, a disciplined mind and body, and openness to that which is larger than ourselves. Beryl presents this information in a conversational, friendly manner, similar to how she spoke at a workshop I recently attended. Asanas, of course, are at the core of this work, and BPY gives us a good overview of a mixed primary and secondary series of practice. However, BPY goes beyond the asanas by linking the chakras to the 8 limbs of astanga yoga practice as detailed in the Yoga Sutras. The section on pranayama is exceptional--she brings a relatively obscure practice down to earth in a way that reveals not only how to do it, but *why* it's important to practice in our lives. This is a book for those interested in the larger picture of yoga and how it fits into a spiritual/philosophical worldview of how to live rightly on this earth. Highly recommended for those who like to sweat but are ready for even more from their practice, as well as those from other hatha yoga traditions, if just to prove that astanga yoga is rooted in spirit as well as matter.