In this book, Levitt and Dubner encourage their readers to think outside the box; not to base decisions using their pre-conceived beliefs. To do this, be willing to say “I don’t know”. Ask the right questions, not the wrong ones. Work on small problems and not on global ones. Seek out the real root cause of a problem, not just the popular explanation. Quit working on a problem if the amount of energy you put into it exceeds its value. Decide whether offering incentives are a help or hindrance in resolving problems.
Innumerable anecdotes support the authors’ concepts and add to the reader’s enjoyment.