This comprehensive introduction to the major thinkers and topics in political philosophy explores the philosophical traditions which continue to inform our political judgments. Dudley Knowles introduces the ideas of key political thinkers including Hobbes, Locke, Marx and Mill and influential contemporary thinkers such as Berlin, Rawls and Nozick. He outlines central problems in political philosophy and encourages the reader to critically engage with all the issues discussed. The individual chapters discuss and analyse utilitarianism; liberty; rights; justice; obligation; and democracy. Political Philosophy is ideally suited to students taking introductory courses in political theory and philosophy.