This is volume one of a three volume set, a translation from the Chinese, of Di Guoyong's series on Xingyiquan. It contains the theory, practice, and teaching methodology of the five element techniques of Xingyiquan, plus the five element solo and partner forms. The twelve animals are now included in volume I. This is the third edition of Volume I Five Element Foundation, which will be known as The 2020 Set Edition.
An excellent introduction that isn't stingy on the details or mechanics. Andrea Falk's comments help to provide context. They also add a playful layer to this thorough book. There are a couple of videos of Di Guoyong on youtube doing the Five Elements as well as a subtitled video where he demonstrates the 12 animals. Together they testify to the man's skill and the beauty of this art.