This book was published by Dan Docherty in 1994.
Its purpose is to assist students who are being taught Square Short Form by a Wudang Tai Chi Chuan instructor.
The book contains images of Dan Docherty performing the Square Short Form techniques, one move at a time. Each series of images is supplemented with text explaining each of the moves in more detail.
A PDF version of this book is available for download, please see above.