I've been fortunate to work closely with some really good editors over the years. Sadly, not every writer can say the same. Maybe this has happened to you? You turn over your novel or magazine feature article to an editor for a thorough once-over, thinking the "extra set of eyes" will uncover all the things you can't because, well, you've been lookin' at the thing for way too long. * Spelling mistakes * Grammatical errors * Formatting issues * Plot holes and weak transitions