If you look at the books I have read, you will notice there has been a bit of a Michael Pollan splurge. He writes fantastic books. If you are at all interested in food, farming, growing stuff, eating stuff, big business and the complexities of government you should read them.
I also really enjoyed Wildwood, by Roger Deakin. It's a gentle exploration of the world through different aspects of wood. That sounds really weird, but it's a lovely, lovely book.
So now, thanks to these two guys, I really want to go to the forests of Kazakhstan, where all the apples in the world originated...can you imagine?