The definitive illustrated guide to the practice of yoga - by the world's leading yoga teacher - with a new chapter on his life and work. Includes yoga sequences specially developed to help alleviate over 80 ailments, from asthma to arthritis to irritable bowel syndrome and varicose veins, as well as a special 20-week course for beginners. This anniversary edition celebrates BKS Iyengar's 90th birthday with a new chapter on his life and achievements and a special day-in-the-life feature.