"One World is an instructive book, especially for American students wrestling with America's poor record as a global citizen. However unpleasant this may be, awareness of the reality is a necessary condition for young people to want to get involved to change things for the better."--David Hoinski, West Virginia University

"As someone who uses this book and some of its details for teaching, I greatly welcome the updated data and evidence. I am not aware of other books on this subject that are accessible to general readers."--Linda Dynan, Northern Kentucky University

"Peter Singer writes, as always, lucidly and with relentless logic. Getting states to behave ethically is a heroic aspiration, but this book will give even the most obdurate realist much to think about."-Gareth Evans, Past President, International Crisis Group, former Australian Foreign Minister

"Peter Singer may be the most controversial philosopher alive; he is certainly among the most influential."--New Yorker (on the earlier edition)