Beginning with an examination of theoretical frameworks and approaches, the book goes on to address the institutions and processes that surround the EU's international relations. Key policy areas, such as security and trade, are outlined in detail, alongside the EU's relations with specific countries, including the United States, China, India, and Russia.

Updates for the third edition include expanded discussions of three key perspectives to provide a rounded picture of the EU's place in the international system: as a sub-system of international relations, as part of the process of international relations, and as a power in its own right.