From the press release:
Iyengar has devoted his life to the practice and study of yoga. It was Iyengar’s unique teaching style, bringing precision and clarity to the practice, as well as a mindset of “Yoga for all,” that has made it into a worldwide phenomenon. Iyengar, who turned 94 in December last year, and calls this his “last major work in this lifetime.”
I recommend you visit the link above. A glance at the Table of Contents alone will give you an indication how important this work will be to the study of yoga.
Iyengar yoga and the teachings of B.K.S. have been transformational in my own life. His teachings transmitted through excellent teachers such as Phyllis Rollins, Mary Reilly, Ramanand Patel and Aadil Palkhivala have brought so much clarity to my practice and saved me from years of frustration and injuries. These teachings have also informed and expanded my knowledge as a teacher, to the great benefit of my own students.
For the wisdom of Mr. Iyengar and for all of these teachers I am eternally grateful. Namaste.