Among dozens of leadership theories, types, and styles, "principled leadership," is increasingly in demand as ethical crises plague more and more organizations and individuals. But despite strong consensus surrounding the need for principled leadership, there is little common understanding of it as an art and science. What exactly is principled leadership? How does it work? How does a leader practice it? What distinguishes it from other leadership types? What does it look like in action? How is principled leadership more than just individual principled behavior? This book answers these and more questions, introducing principled leadership theory and illustrating it through practical case studies. Principled leadership holds powerful, positive effects for leaders who practice its concepts.