My friend and I both have a copy, so we can work through it together. We both love it. Its practical, easy to understand and non-judgemental e.g. I am a vegan and my friend is a carnivour and the book is perfect for both of us as it is so inclusive. Personally I dont like the use of the word 'thin' in the subtitle, I want a healthy body and I dont need to lose weight, but I did want to use Taoist principles to be healthy and I am improving my health with this book and Dr Chang's book on Internal Exercises. Some information is repeated in both books, but thats okay, it bears repeating.