The Chicago Manual of Style – that little red book that’s the bible of citing sources – is testing an online version. Right now they’re offering free 30-day trials, and it’s worth a look. There’s also some stuff that doesn’t require any sign-in – my favorite is the Chicago Style Q&A, where someone with a sense of humor answers nit-picky questions only a grammar nerd (or a professional editor) could love. For example:
Q. Is it prework or pre-work (for work that is to be done before a meeting)?
A. Prework is a pretty silly concept, if you think about it. I mean, is it work or not? It would be like preeating. How about calling it “preparation”?
Written by Phoebe Acheson