B. K. S. Iyengar, a well-known yoga master from India, was born in 1918. He introduced a series of asanas that are still practiced today as part of the traditional asana practice. With his father’s help, he published his first book, Light on Yoga, in 1952 and developed a system of yoga called Viniyoga. His teaching style is also known as "Iyengar style" and it focuses on alignment and balance rather than a set sequence of poses. Iyengar has been credited with popularizing the use of props, which are used to adjust poses for people with different body types and injuries. This focus on alignment and balance has led to Iyengar yoga being used to treat back pain and other injuries. In his later years, Iyengar focused more on breathing techniques, meditation, and vegetarianism. In 2016 he published a book called The Tree of Life: Yoga for Complete Well-Being. B. K. S. Iyengar is an internationally renowned yoga master from India who introduced a series of asanas that are still practiced today as part of the traditional asana practice. With his father’s help, he published his first book, Light on Yoga, in 1952 and developed a system of yoga called Viniyoga. His teaching style is also known as "Iyengar style" and it focuses on alignment and balance rather than a set sequence of poses. Iyengar has been credited with popularizing the use of props, which are used to adjust poses for people with different body types and injuries. This focus on alignment and balance has led to Iyengar yoga being used to treat back pain and other injuries. In his later years, Iyengar focused more on breathing techniques, meditation, and vegetarianism. In 2016 he published a book called The Tree of Life: Yoga for Complete Well-Being that discusses the benefits of eating food that is plant based rather than animal based.