This book has become my favorite Iyengar book, possibly my favorite yoga book, for many reason.
1) it's a beautiful book.
the colors, the font, the paper, photographs... it's easy and pleasing to the eye.
2) The language is beautiful and clear. Every line I read, I feel as if I am taking a breath of freshest and cleanest air that clears up confusion.
Page 26, "if I have to do Tadasana... it often happens that one leg appears strong, attentive, steady, and straight whereas the other leg remains inattentive. One can feel that one leg is in a passive, non-violent state and the other is in a violent or aggressive state. Hence, it becomes necessary to balance the two legs evenly so that one will not be able to differentiate between activity and passivity, or violence and non-violence... Secondly, if you keep the legs unevenly, the mind remains unstable. Establish alignment in the body; align the muscles, joints, and intelligence, energy and attention."
3) Iyengar talks about his life and the honesty is so touching and refreshing.
Page 10, he writes, "The interest in yoga came not from the love of yoga, but for the sake of earning my livelihood."
Page 86, "Yoga is an inner bath. Blood gives us a bath inside the body. To do this, the blood has to circulate extremely well, and with a constant, even power or force. Think of a waterfall, how much energy it generates. By the practice of yoga, we have to generate energy in our blood to nourish every part. Then the cells sense comfort and freedom, and send the message: `I am happy."
5) Imagery and precision of language.
Page 178, on preparing for Salamba Sirsasana (headstand):
" One has to begin by introducing the asana where the flow of blood does not rush toward the brain cells but is made to percolate or seep through them..."
If you enjoy practicing yoga or enjoy reading about yoga, you probably want to explore this book. That said, if you are just about to begin yoga, then you probably want one that's more for beginner, although you can still benefit from this book as a support to get to a deeper level.