Essentials of International Relations lays out the basics of international relations theory and analysis. Karen Mingst clearly presents the theories of the main schools of thought in international relations (liberalism, realism, Marxism, constructivism) and the three main levels of analysis for understanding international relations (the international system, states and individuals). These concepts create a framework that helps students understand issues, events and the roles of various actors in world politics. The thoroughly updated third edition takes account of recent events in world politics - and their implications for international relations theory.