No, I'm not some eco-nut, but as I am trying to cut back on the number of books I buy, since most of them are either in libraries or will sit unread on my shelf, I figure it wouldn't hurt to know which type might be better for the environment. Hardback books use more materials, but they last longer and therefore have a higher resale value, which means fewer of them need to be produced before, years upon years from now, they find their way into landfills. Paperbacks cost less and use less material, but they wear out faster and are more likely to kick the bucket early. Any thoughts, suggestions, verifiable facts? I would greatly appreciate it.