i read this book while i was studying equine shiatsu (we also covered human shiatsu) so, as this book is based on human acupuncture it wasnt all totally relevant, but i still found it an excellent book with regards to comprehending the five elements. it is a very easy book to read and i would recommend it to anyone studying acupuncture/acupressure/shiatsu,those struggling to get to grips with five element theory, or those who just have an interest in oriental medicine. the sort of book you could read several times over, and good to keep as a reference.