Successful action requires good decisions. However, many people struggle to make decisions confidently. Decisions are often postponed for too long, delegated to others, or made impulsively or even defensively. This book discusses the reasons for poor decision-making behavior and provides a wealth of decision-making techniques that can significantly enhance one’s decision-making competence. Successful decision-makers from the fields of business, politics, law, sports, and science share their proven and practical decision-making strategies in interviews. It also openly addresses taboo topics such as the fear of making wrong decisions, the fear of responsibility, and ways to constructively deal with mistakes. Readers will thus learn to make effective decisions.