The Complete Book of Vinyasa Yoga : An Authoritative Presentation—Based on 30 Years of Direct Study Under the Legendary Yoga Teacher Krishnamacharya by Srivaisa Ramaswami (PDF) 

” My study OF yoga and related subjects under my guru, Sri. T. Krishnamacharya, spanned over three decades. I first met him when I was about fifteen years old, when he, at the request of my father, came to my house to teach yoga to my somewhat handicapped brother. Soon all the members of our family were his students.

With my guru I studied hatha yoga, Vedic chanting, and important yoga and related texts, such as the Yoga Sutras, the Upanishads, the Bhagavat Gita, Samkhya, elements of Tarka, and others. I started teaching only after more than fifteen years of rather intense study with him. I taught hatha yoga to students of Kalakshetra, which is recognized as an institution of national importance by the government of India.

I taught for more than twenty years. Since the students were young and artists and dancers, their interest and quality of practice were of a high order. My guru taught me vinyasa krama over three decades, in a comprehensive manner, with all the beautiful flowing sequences linked closely to smooth, deliberate breaths—the unique yoking of body and mind that vinyasa krama provides.

I also observed Krishnamacharya teach other students and give demonstrations, which all helped me to slowly understand the unfolding of yoga practice as a consummate art. I have attempted to present this gift from my guru in this book.”

The Complete Book of Vinyasa Yoga (PDF)