"This is a valuable update to a book that excels at examining competing solutions for some of the world’s critical economic, environmental, and political problems."—David A. Rezvani, Dartmouth College

"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)