The Yoga Sutras of Patanjali is a major work in yoga. This audio-book is about control of mind and the true goal of yoga.
The sutras are full of wisdom, and the translation in neat English makes it very easy for people to understand the ancient Sanskrit text. It starts with the birth and growth of spiritual man through the control of mind.
In all, this is an all-in-one book for yoga philosophy written by the master himself.