This month I’ll offer a quick-and-dirty guide to punctuating a sentence. Nothing that follows is meant to substitute for the nuanced explanations of what’s usually called a writing handbook, the sort of book that college students purchase in a first-semester writing course. These five rules though have the virtue of being manageable, which is difficult to say of a 1,000-page book. In each paragraph that follows, the sentences illustrate the punctuation rule involved. Note that I’m avoiding almost all grammatical terminology. Instead, I’m emphasizing a small number of sentence patterns.