Is it right to depose an unjust ruler? Is democracy really the best form of government? And can war ever be justified?Explaining the key milestones in the field of politics and political thought in a clear and simple way, The Politics Book answers these questions and more besides, and is the perfect introduction to the subject. Untangling knotty theories and shedding light on abstract concepts, entries unpack each complex idea with a combination of easy-to-follow explanations, innovative graphics, and intriguing quotes. Discover everything from the origins of democracy to Machiavelli's cunning statecraft, and from Rousseau's "social contract to Marxist communism, the dawn of populism, and identity politics. And explore the "big ideas behind the numerous different political beliefs and methods of government used around the world and throughout history. Fully revised and updated with eight brand-new pages of content, The Politics Book is a truly accessible and comprehensive route into a fascinating subject.