I have it and the DVD. I like them, they are TGM based but no TGM terms. Book is step by step how to set up, how to chip, pitch, and swing. DVD is similar to book, grip, set up (arms hang), chip, pitch, and swing. It is basic stuff but good. These were the first ones I purchased to move to TGM and I liked them as a introduction. I do recommend the stuff from Brian which uses more TGM terms (I heard things on Brians videos, you won't get ANYWHERE else. Especially about the right arm). And I highly recommend the Bobby Schaefer video Ultimate Power Golf Swing which is very TGM and works on chipping, pivot, and discusses power accumulators.
Just my opinion. I do also have Ben Doyles video which I like and a few from Mark Eversham from TGS site (TGM Canadian style).
In order I would go, Brian, Bobby S., Chuck and then Mark. I think the more you know of TGM, the more you will get out of all of the instruction provided in these videos. I watched some early on without reading the book and upon later viewing, got much more from them.
My two cents.