Before the discovery of the first black swan, people were convinced that all swans were white. Hence, a “Black Swan” indicates an unexpected and impactful rare event. From the financial crises to the sinking of the Titanic, or the September eleven attacks, “Black Swans” exist in all fields. This book provides an in-depth analysis of the nature and the rules of “Black Swans.” It enables us to understand both how society operates, and how to gain the upper hand in this uncertain world.