Dean Putney, software engineer, editor of his grandfather Walter Koessler's wartime photojournal and former Generalissimo of Development at Boing Boing, published a lovely zine of photos he's taken over the years from airplane window seats.
Individually, each is just a well-framed shot of the ground from the sky. Collectively, a striking view of the world that puts other things in perspective.
It came in a curious linotyped envelope featuring one of the landscapes. Perhaps Dean'll pop into the comments to explain how he made the stamp!
