For some time I have argued with myself regarding this statement, TGM is a catalog, not a method or style. It has been said many times in defense of the book, etc.
Granted the book first 11 chapters are in fact a catalog, a description, etc. but none really meat the definition of a style or method.
Now Chapter 12 provides two stroke patterns (Hitting/12-1 and Swinging/12-2) which define a golf stroke style. Take 12-5-3, the method defined, how to teach either of those patterns.
In addition, throughout chapters 2 - 10 there are a number of drills and exercises to support Chapter 12.
TGM would in fact meet the standard definition of method and style regarding the golf stroke.
The application of the method and style is the bare bones, it does need the flesh and approach added to make it a polished product as well as personalized to both the instructor and student learning style and method of instruction.
A lot of golfers often have trouble understanding the difference between 'position' and 'alignment'. Explain the bent right wrist or flat left wrist, they see that as a position. The understanding of alignments often lack relationships and appear to be positions.
How it is actually taught and learned, Tom Stickney wrote an article a while back regarding the kinds of teachers and to more less the extent how golfers learn.
http://web.archive.org/web/200303121...r/stik0302.htm
IMO TGM has more than some give it credit for....