When it comes to books on the topic there’s a bushel, but two could be said to be standards: this one and Light On Yoga (see next item). Integral Yoga Hatha has probably started more people then any other, it’s simple, clear and well illustrated, and each asana, or posture, is also described in writing. If you’d like a closer look, there are numerous Integral Yoga institutes around the country offering classes in hatha and related topics.