Is it fair to depose an unjust leader? Is democracy really the best polity? Can war really be justified? Throughout history, humanity has asked these and other big questions about how best to govern—and great thinkers have proposed solutions that shape our world to this day. Written in simple and easy-to-understand language, the book is packed with short but comprehensive explanations, diagrams that explain theories in detail, and clever illustrations, in a fascinating examination of political ideas. Whether you're new to politics, a keen scholar, or simply fascinated by reading about it in your spare time, you'll find plenty of food for thought here.