I don't need to tell you Yang Zhee Lee is a pseudonym. If fact, he explains this in the Dim Mak Simplified. The person behind the pseudonym doesn't want to tarnish his business or alternative medicine with being a martial artists and writing a book on what he considers a perversion of acupressure and acupuncture.
Let us begin with Yang Zhee Lee's simplified Dim Mak points...
Those same time tables are discussed by Yang Zhee Lee using a simple set of charts, that a reader would need to reference to find the best time to strike the listed 21 Dim Mak vital points for maximum effect. In fact, the contents page explains much of the information detailed within Dim Mak Simplified.
Section 2: Breaks down the 5 animal short form into individual fighting tactics. Each Short for is expanded by moving from one form to the other.
Section 3: Describes training drills and exercises to build the body and develop physical power and endurance for application of Gung-fu/Kung-fu in self-defense.
Section 4: Details the charts and time tables that can be use maximize the already effective vital points of Dim Mak striking, such as; Chi Principles for understanding what chi is how it functions within the body and the universe, the five element theory of Chinese Alchemy, the Solid/Empty Organ theory of how chi circulates in the body and, finally the 12 hours of the Chinese calendar and times when chi flow is strongest to vital areas.
Section 5: Give a brief overview of Chinese Street Fighting Rules, Ranking and History.
Section 6: Deals with the Author's philosophy toward violence and how kindness is a stronger weapon then aggression. It also explains some practical first aid applications of Dim Mak.
Section 7: Is an about the author and why he chose to use a "pen name."
There is an Appendix A demonstration a 14 step Boxer's Form for additional study.
Clearly Dim Mak Simplified lacks the depth of Bubishi & few works modern or ancient truly compare the Bubishi. However, the vital points between the two works clearly overlap, though there is many more charts found within the Bubishi's texts expanding & overlapping with the 36 vital points mentioned in this article. The Bubishi is catalog of essays, philosophies, and skills ranging from simple fighting techniques to medicine and healing arts. Dim Mak Simplified is a stripped out bare bones explanation of an art without masters where one's status is obtained only by fighting others (Chinese Street Fighting) and simplification of a whole science detailed in Bubishi. Both are worth a look and both reinforce principles in the other.
Dim Mak Simplified