[1][2][3] As a follow-up to The Life You Can Save, which makes the moral argument for donating money to improve the lives of people in extreme poverty, the new book focuses on the broader question of how to do the most good.

"[11][12] University of Chicago Law School professor Eric Posner reviewed the book for Slate Magazine, concluding: "So what's an effective altruist to do?

"[13] Posner wrote a follow-up post on his personal blog, stressing that in his view Singer's main weakness was that he did not spend enough time working through the ramifications of the importance of institutions.

[14] Minal Bopaiah wrote a blog post favorably reviewing the book for PSI Impact, a website maintained by Population Services International.

"[16] Glenn C. Altschuler, professor of American Studies at Cornell University, reviewed the book for Philly.com, concluding: "Singer opens up worthwhile conversations (and practical applications) related to ethical ideals.