Light on Yoga is broken into a number of different parts:

• A technical introduction to yoga, in which hatha yoga is explained to be one of the eight limbs of yoga

• A detailed illustrated description of the asanas (some 200 postures, illustrated by some 600 monochrome photographs of Iyengar)

Each asana is named in Sanskrit with its etymology, graded, and described separately with two or more pages of text and monochrome photographs of Iyengar. For example, Utthita Trikonasana, the extended triangle pose, is stated to be at grade 3 out of a possible 60 in terms of difficulty. The technique for going into the triangle pose, performing it, and returning from it, is described in eight steps. The technique is written as a set of instructions, such as "Inhale deeply and with a jump spread apart the legs sideways 3 to 3½ feet". Its claimed effects on the muscles and body are described in a concluding paragraph. The three photographs show Iyengar in a preparatory pose and then in the triangle pose itself from front and rear.

• A brief account of the bandhas and kriyas

• An account of pranayama, or yoga breathing

• An appendix defines a set of asana courses, i.e. which postures to do each week, building up in difficulty, in courses structured to last up to 300 weeks

• A second appendix defines the asanas supposed to be "curative" for a range of diseases and conditions from "Acidity" to "Varicose Veins" 

• A glossary of all the Sanskrit terms employed

Can you name all of the asanas from the Testimonials page banner pic? Sanskrit only please ;-)