ganapathi Posted February 20, 2017 Hi all, Â I was desperately looking for this book as I liked Yang Li's other book: "Book of changes and TCM". Such a phenomenal book.I am ready to buy from you. I did try in google but no use. Hope someone will help for sure. Â Â Basic goal is to study the science behind various breath exercises. Â Warm Regards Gana 1 Share this post Link to post Share on other sites