Ultimately, a book should only be as long as it takes to tell the story – no longer, no shorter. George Orwell managed Animal Farm just fine in 168 pages, while Steinbeck’s Of Mice and Men is only 108 pages. And while there is nothing wrong with a long novel if its length is what it takes to tell the story, just think of how much shorter Twilight (2,720 pages) could have been if an editor had told Meyer to stop with all the amber eyes/ice cold skin repetition. The story would still have had problems, but each book would have been about 50 pages shorter (yes, hyperbole). Even The Neverending Story manages to be 2,336 pages shorter than Twilight.