> Actually pretty good but it still falls into the trap of thinking that there are rules, and that some people follow them and some people break them. I recomm

> Actually pretty good but it still falls into the trap of thinking that there are rules, and that some people follow them and some people break them. I recommend _The Linguistics of Punctuation_, by Geoffrey Nunberg. It's a linguistically-informed descriptive (rather than prescriptive) analysis of English punctuation.