Esther Dyson talks about writing good emails in, about the email you sent me. Here’s a simple, but vital rule to start with: When you write an email, put yourself in the reader’s position. Take advantage of the subject line and get to the point. Unless you’re emailing friends or family, write to achieve a result, not to express yourself. If you’re looking for action, ask for it. If you’re sending information, explain why it’s important, if it’s not, then don’t send it.