I'm taking it for granted that I'm preaching to the choir here when I say that books are different things. Books are novels, nonfiction, collections of photos, hardcover, paperbacks, inexpensive newsprint, rare vellum, scrolls, pop-up books, random pages bound together, text running left to right, right to left, vertically, no text at all, usually but not always made of paper. I think one of the things that we value so much about books is their very malleability. Hell, digitize it, put a "e" in front of its name and read it on a Kindle and it's still a book.