Malcolm Gladwell called this "utterly captivating." Add Audible narration for $12.99.

This modern classic melds pop culture with economics, and hasn't been on sale for this cheap in nearly 3 years. From the publisher: "Freakonomics establishes this unconventional premise: If morality represents how we would like the world to work, then economics represents how it actually does work. It is true that readers of this book will be armed with enough riddles and stories to last a thousand cocktail parties. But Freakonomics can provide more than that. It will literally redefine the way we view the modern world."