Unread books make many readers feel guilty. Librarians, teachers and bookstore owners are also familiar with this phenomenon.

For some, it's the length (Beth Sutton-Ramspeck hasn't read Tristram Shandy) For others it is complexity (see: “Ulysses’s 647 pages of tiny, tiny print") And for still others? That's the weight of Robert Moses, "The Power of Power" "It's just heavy, and that weight also weighs on my physical weight," one reader writes. "Is keeping a book in the 'next to read' pile the same as fighting windmills? without reading it?’” says another. “I have a bad habit of putting off reading books that I own because I... forever, and the books I borrow from the library have a specific time limit, if that counts," says Bev Robertson, who owns "The Autobiography of Mark Twain: Volume 1"