"Light on Yoga" is a comprehensive guide to yoga written by B.K.S. Iyengar, a renowned yoga teacher. First published in 1966, the book covers various aspects of yoga, including asanas (postures), pranayama (breathing techniques), and meditation. It serves as both a practical manual and a philosophical exploration of yoga, making it accessible to practitioners of all levels. The book is well-known for its detailed instructions and illustrations, which help readers understand the correct alignment and benefits of each pose. "Light on Yoga" has become a classic in the field, influencing countless yoga enthusiasts and teachers worldwide.