For anybody - but especially students - interested in exploring the subject of international economics, this is the book to start with. It is illuminating (as it is always the case with Krugman's writings) on otherwise technical concepts as comparative advantage, trade policy and exchange rate determinants, but it is also entertaining, with its "reality checks". The first part of the book deals with the "real" economy, the second part with monetary international economics. It will save you a lot of time to begin your study of the field with this book. If you have had previous experiences with international economics but either forgot most about it or had trouble making sense of the whole thing you will probably get a good grasp of the subject after reading this manual. The bibliography is accurate and rich, the exercises won't give you an headache. Readers with some background in economics are most likely to take full advantage from the book. For the others, well, some introductory economics will be necessary. Once you've read this book, you can continue more safely your studies/readings on international economics.