B.K.S. Iyengar has devoted his life to the practice and study of yoga. It was B.K.S. Iyengar's unique teaching style, bringing precision and clarity to the practice, as well as a mindset of 'yoga for all', which has made it into a worldwide phenomenon.His seminal book, LIGHT ON YOGA, is widely called 'the bible of yoga' and has served as the source book for generations of yoga students around they world. In LIGHT ON PRANAYAMA, he establishes the same definitive level of authority on the art of breathing.For the serious yoga practitioner, the study of Pranayama is essential. This work, from the most respected yoga teacher in the world, B.K.S. Iyengar, offers the most comprehensive and instructive work available in the world. With 190 photos of B.K.S. Iyengar himself, the book highlights a progressive 200-week practice, highlighting the best techniques and the common errors in them.