I just received and read through Alex Kozma's new book on Ziranmen and Internal Chinese Martial arts. I not only enjoyed the style of writing, and the content, but find it a very good addition to my library of books on TCMA. Alex's book contains a lot of usefull and insightful comments by a number of Master's within the internal arts, they alone are worth the book, from anecdotal comments on teachers, their views on training, their key points of practice. It is well laid out with many pictures and clear how to explanations on practice.
Well worth the money