Internationally revered cultural anthropologist and marketing expert Clotaire Rapaille reveals for the first time the techniques he has used to improve profitability and practices for dozens of Fortune 100 companies. His groundbreaking revelations shed light not just on business but on the way every human being acts and lives around the world.

Rapaille's breakthrough notion is that we acquire a silent system of Codes as we grow up within our culture. These Culture Codes invisibly shape how we behave in our personal lives, even when we are completely unaware of our motives. We can learn to crack these Codes and achieve new understanding of why we do the things we do. He has used the Culture Code to help Chrysler build the PT Cruiser: the most successful American car launch in recent memory; helped Procter & Gamble design its ad campaign for Folger's coffee, one of the longest-lasting and most successful campaigns in the annals of advertising; and he's helped GE, AT&T, Boeing, Honda, Kel