Foreign aid is incredibly difficult to get right, and this book provides a great argument for the necessity of empiricism in assessing interventions. The authors examine the primary threats to women in the developing world: Sex trafficking, death in childbirth, lack of female education, etc. and analyzes what has worked -- and failed to work -- to address each problem. The results are often surprising. Overall, this book provides a useful blueprint for how we should be directing money and political will to move things forward.