In another time, a book like this would be called Thinking Outside the Box. But on the heels of their successful franchise that began with Freakonomics, authors Levitt and Dubner have opted to call it Think Like a Freak. Among their tips? Learn to say, "I don't know," think like a child, know when to quit and my favorite, learn how to persuade people who don't want to be persuaded. Full of surprising facts and details. Reminds me of the 150-year old quote by American humorists Josh Billings who observed, "The trouble with the world ain't ignorance, it's just that people know so much that isn't so."