The document discusses power and how to effectively wield it in organizations. It provides examples of people who exercised power skillfully, such as the director of UCSF's breast cancer center who developed power to implement her ambitious agenda of integrated breast cancer treatment. The author focuses on teaching about power and how to obtain desired results through influence. Real-world case studies are used to illustrate principles of exercising power through controlling resources, shaping behavior with rewards, advancing on multiple fronts, and removing rivals.