Excellent review from the New Yorker of a new book on email etiquette: Send: The Essential Guide to Email for Office and Home by David Shipley and Will Schwalbe.
Here’s an excerpt:
Shipley and Schwalbe enumerate six essential e-mail types (the Ask, the Answer, Grovelling, etc.), eight deadly sins (too casual, too vague, too illegal, etc.), and a four-step checklist (S.E.N.D.) that reflects the authors’ broad-ranging e-mail conservatism. “S” stands for simple, “E” for effective, “N” for necessary, “D” for done. Generally, they’d have you hit “send” later and less often. They offer a hermeneutics of the cc, an invocation against the word “please,” and a number of rather chilling but by now self-evident rules (“Never forward without permission, and assume everything you write will be forwarded”)
Read on here.