I only discovered this book when John Fortune agreed to be a guest on Genius and I was finding out more about his background. He co-wrote it with John Wells over 3 weeks in 1971 and it's remarkable. At the recording I used it as an example of his genius and with good reason. It concerns a man who... well, who knows trees in the Biblical sense. Odd. Funny. A classic.
See all the books I've recommended so far here.