In 150 experiments, Serge Ciccotti, a psychology professor at the University of Southern Brittany and author of French psychology bestsellers, explores entertaining questions about human experience and behavior that surprisingly hold a scientific mirror up to us: Why do we perceive the Barbie doll as beautiful? What makes us laugh? Or why can we hear what our conversation partner is saying amidst the noise of a party? And why is it always the teacher's fault if we fail the exam?.