About B.K.S. Iyengar
Bellur Krishnamachar Sundararaja Iyengar taught yoga in India and founded the Iyengar Yoga style. He wrote several books, including Light on Yoga, Light on Pranayama, Light on the Yoga Sutras of Patanjali, and Light on Life. He studied early with Tirumalai Krishnamacharya, often called the father of modern yoga, and helped spread yoga first across India and then worldwide.