In their book Send, Shipley and Schwalbe pick apart email as a communication medium, including deciding when it is appropriate and how to use it productively. They also examine email anatomy and provide tips for how to compose more effective messages.

While it was fairly comprehensive, as a seasoned email user I didn’t find very much new information that I didn’t already know or hadn’t already figured out myself. One good point that struck me, however, was the section on Cc:ing and the phenomenon where the more people copied on a request for action, the less likely any one of them is going to act. I’ll be keeping that in mind!