Developing Chi Power: By William Cheung

Has anyone ever heard of this book. I read the review and it was great. I've studied different practices from ch'i by learning Five-star Praying Mantis Gung-fu and Wing Chun Kuen. And I've also learned the correct form in how to use Fa-Jing and the one-inch punch ( which is also known as, " explosive fist. ) I was wondering if anyone used this book or even heard of it.

I remember glancing through that book a couple of times. I found it to be pretty basic compared to what I already knew at the time.