I finished Eat, Shoots & Leaves yesterday, but instead of moving on to Wonderboys as I had planned, tonight I'm moving on to The Chicago Manual of Style (which, when I worked in publishing, we just called "Chicago"). I'm hoping that it clarifies the usage of colons, since the information will not be buried under jokes and protracted metaphors. Don't get me wrong: I loved Eats, Shoots & Leaves, but it's mostly a book to enjoy if you already know the stuff. It isn't all that good at being instructive. And since I've mostly avoided colons my whole life because I don't know how to use them properly (I would always look them up in Chicago if I encountered them in questionable circumstances in something I proofread), I'd love to learn. So I'm picking up The Chicago Manual of Style for pleasure reading. The sign of a true grammar nerd.
[Edited To Add: Yes, indeedy, The Chicago Manual of Style was clearer (and more concise). I don't have the section memorized, but I think I'll be more comfortable with colons in the future. Huzzah!]