Yeah, Mikemc, I saw that page with the Barnes books for 100 bucks or so. I think Amazon lists one of his books (-used) for a hundred bucks. Too rich for my blood!
One thing I can see already is that although I’ve learned a lot of lines from Herb, in his books he doesn’t talk much about using one shape in multiple ways the way Tommy does. (I like the point Tommy makes in one of his lessons: “There’s only so many ways your fingers will go on a guitar.” Something like that. Meaning, you use the same shapes but in different places—in relation to the chord of the moment—they produce different results. That’s something I need to learn more about.)
Picked up Kessel’s “The Guitar” at the library (via inter-library loan) yesterday. Barney was a four-shape guy, as was said above: C, Bb, F, and G. (What he calls Bb most would call “A” and what he calls “F” is what others call open E. I think to be consisted, he should switch “C” to “D” (-so there are no open strings), but who am I to tell Barney Kessel what to do???