The definitive work by B.K.S. Iyengar, the world???s most respected yoga teacher. 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 mind-set of ???yoga for all???, which has made it into the worldwide phenomenon it is today.