As much as it's useful to read a detailed account of what Chuck Moore was thinking when he created Forth, or chuckle as Tom Love takes pot shots at Bjarne Stroustrup [1], I really don't see a cohesive message across the whole work. Obviously, this won't be a problem for many people, but really, as many of these stories are already all over the web, I'm not sure how much original value this work is providing.

[1]Tom Love (co-creator of Objective-C): There's the successful direction, and then there's the approach that Bjarne took with C++. In one case, it was a small, simple—dare I say, elegant—programming language that was very crisp and well defined. In the other case it was a pretty ugly, complicated, difficult language that had some really troublesome features. I think those are the distinctions between the two.