It's not often that we get a book that addresses both political scientists and policymakers at the same time. This book manages to do both. The essays are written by top political scientists, but are done so in a way that makes them very accessible to readers who might not care to delve into the game theory and statistics of an argument.
The substance of the book looks at the causes of civil wars. In particular, the essays address the question of whether greed of grievances encourage insurgents to engage in violence. The essays employ a wide variety of methods to answer this question. While readers aren't left with a single answer, the book provides plenty of fruitful areas for future research.