This chapter comprises a very brief introduction to European Union (EU) politics. It aims to help those students who are completely new to the EU by drawing attention to some general (background) information and context which helps to make sense of the chapters that follow. To that end the chapter begins by questioning whether the EU is ‘in crisis’. It goes on to reflect on what the EU is, why it was originally set up, who has and can join, who pays (and how much), what the EU does, and what role citizens play in the EU. The chapter ends by explaining how the book is organized.