I wonder, are people really using this yet? I started using snail mail a looooooong time ago. But I hadn’t heard “tree-book” until today.
March 30: tree-book
A book printed on dead trees, i.e. paper, as opposed to an e-book, which only exists electronically. Compare with snail mail.
Thomas: Hey, how do you like your new Kindle?
Andrew: I don’t know, I haven’t used it yet. I’m still trying to finish all the tree-books I’m reading.