The second edition of this introductory textbook on foreign policy analysis focuses on the key explanatory factors that underlie the foreign policies of states and other actors to show how theory can illuminate practice. Genuinely international in scope and drawing on a wide range of examples, it provides an accessible introduction to the key elements of foreign policy analysis to explain, predict and evaluate what states and other collective actors want, how they make decisions, and key determinants of state security, diplomatic, and economic foreign policies. Providing a broad set of theoretical tools for analysing foreign policy, and including increased coverage of methodology, this new edition provides students with the skills to undertake their own foreign policy analysis.