Books by and about B.K.S. Iyengar:

"Light on Yoga"
B.K.S. Iyengar
Schocken Books

"Light on Pranayama"
B.K.S. Iyengar
George, Allen & Unwin

"Light on the Yoga Sutras of Patanjali"
B.K.S. Iyengar
Aquarian/Thorsen

"The Tree of Yoga"
B.K.S. Iyengar
Fine Line Books

"B.K.S. Iyengar: His Life and Work"
Collection
Timeless Books

"Yoga: A Gem for Women"
Geeta Iyengar
Timeless Books