I just attended a weekend forest gardening workshop with Dave Jacke and I was absolutely blown away. I also realize now that there was a lot more subtlety in the books than I realized when I read them the first time. I had been really enjoying Crawford's book prior, because it was so much simpler and clearer (I still like it), but there is depth in Dave's book, and specificity, and data, that doesn't exist in one place anywhere else. I bought a second set, actually, so I can keep one at the farm and have one here at the apartment.
If you have a chance to attend a talk or workshop with him I *highly* recommend it. He's a superb teacher.
He talked about Robert Hart, and his assessment was not at all negative. He said even though Hart made a lot of mistakes, he was able to eat out of the garden for the last three years of his life without doing any work in it, and how many annual vegetable gardens would allow that? He also said that Hart just did what felt right, even though he himself said he "didn't know much about plants," and we should take a lot of encouragement from that, because we can now draw on lessons from him and from all the other pioneers.
I definitely feel encouraged, and energized, and much clearer of my goals than ever before.