University of Rochester professor Stephen Landsburg offers an economist's perspective on the challenges each of us faces in everyday life. Some of them can cause a smile (for example, questions why popcorn in cinemas is so expensive, why concerts of stars collect full houses or why laws prohibiting polygamy are unprofitable for women), others are completely serious and relate to unemployment, inflation and interest rates. But they are united by the fact that only economic science can give a clear and clear answer to them. This book shows how widely economic science can be applied and how well it solves the mysteries that arise in everyday life.