B.K.S. Iyengar was a living legend and is considered to be one of the foremost yoga teachers in the world. He practised and taught yoga for more than 60 years. He wrote many books on yogic practice and philosophy, and is best known for his books Light on Yoga , Light on Pranayama and Light on the Yoga Sutras of Patanjali. Iyengar yoga centers are located throughout the world, and millions of students practice Iyengar Yoga. B.K.S. Iyengar passed away in 2014.