This is a book on the law of unintended consequences dedicated to students, thinkers, dreamers, or the ordinary pilosopo who are encouraged to discover truth--even at the expense of shattering "common sense" or widely shared beliefs--by looking at the data. Each chapter features arguments supported by rigorous attention to facts and clearly linked evidence in a language that is accessible to most readers. The topics covered in this book range from daily concerns like traffic, food, salary, rent to larger industry and environmental concerns like overfishing and logging. The book also tackles controversial topics like sex education, the minimum wage, conditional cash transfer, and unemployment.