This is an extremely well-written book. The author is obviously hugely experienced and he has presented a training manual that the reader can use to support his training and learning from a qualified teacher, regardlessof the style of Tai Chi practised. The author himself is a Yang style practitioner, but he stays clear of outlining a blow-by-blow account of the Yang form, as this is a training manual not an instruction manual. If you are a serious student of Tai Chi then don't hesitate top buy.
This is the best book on tai chi as a martial art that I have ever read (and I have read lots of such books). The book is clear, methodical, pragmatic, very well written, and will be of immense use to anyone studying tai chi chuan as a martial art, no matter what style they practice. It focuses on training and principles, as well as applications, without presuming that its readers are studying this or that form of this or that style. I would wholeheartedly recommend this book for unbiased, practical, and essential tai chi chuan.