Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't Hire Jerks

Obvious and not terribly useful advice: don't be a jerk, don't hire jerks, don't accept a job working for a jerk, and if you have to work with a jerk, try to avoid him or her as much as possible. The one interesting claim in the book is that research shows that negative interactions affect one's mood about five times as strongly as positive ones.