Kindle
Martin Frost paints elaborate "fore-edge paintings" on the riffled page-edges of thick books. When the pages are squared up, the pictures vanish, but when the pages are riffled again, the images reappear. His site has great galleries of fore-edge paintings and tips for making your own.
LInk
(via Neatorama)
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.