Kum Nye is a combination of meditation/contemplation, self-massage and exercises vaguely related to gentle hatha yoga poses and movements. Unfortunately, it is sometimes called "relaxation", and sometimes "yoga", depending on the books. This commentary's main purpose is thus to provide extra information on different Kum Nye books by Tarthang Tulku as well as on different editions of the book on this Amazon page, Kum Nye: Tibetan Yoga. I won't comment on the book's contents, even if I've found with this book a beautiful way of reconsidering and refining my practice of hatha yoga. [There are good comments from Amazon.com below (on 12 may 2013)]
This edition of "Kum Nye: Tibetan Yoga" (2007--- with the white cover) seems to be a reprint of "Kum Nye - Tibetan Yoga--A complete guide to health & wellbeing. 115 exercises & massages" (yellow and blue cover + a sun), that is shown on the Dharma Publishing's website (though sold out in May 2013).
The 115 exercises are numbered (probably for teaching purposes) in the new edition. I am not sure if it was the case in the first edition entitled "Kum Nye relaxation" (Part 1 & Part 2, published in 1978)Kum Nye Relaxation: Pt. 1 (Nyingma Psychology Series) and Kum Nye Relaxation: Pt. 2. Otherwise, there is no indication in the 2007 edition's introduction that any changes have been made for that new edition.
Each self-massage or movement exercise is illustrated with one single drawing, probably kept from the first edition. However charming, the drawings sometimes lack clarity and basic anatomical realism (ex: exercise 66, Increasing Inner Balance : the character is drawn with her trunk in a twist that makes almost 180°).