The EU is a complex beast. This book covers the EU from a broad range of angles - what it is and how it reached its current form, how it works and through which institutions, in which policy fields and what the broad thrust of the EU's policies in key fields is, how it impacts on the lives of Europeans and the EU's position in the world. It's an excellent book that will give you a decent understanding of the EU.
John McCormick approaches these themes from the academic discipline of comparative politics and public policy. He serves up each chapter with a brief introduction, then the meat, followed by a conclusion which doubles as a summary of sorts. Coverage of each theme is to the point and well-structured.
A reviewer of this book on the American Amazon.com-site writes that McCormick uses easy language. But if, like me, you're not used to reading academic texts on political systems and/or international organisations, you may disagree. It's not a light read and calls for concentration, partly because of McCormick's fairly academic writing style, partly because of the complex topic, and partly because a lot of info is condensed into a relatively short book.
A worthwhile read if you want to move (well) beyond the rough but incomplete understanding of the EU you'll get from just reading papers and magazines.