Utilitarianism: A Very Short Introduction, with Katarzyna de Lazari-Radek (2017)
The Point of View of the Universe: Sidgwick and Contemporary Ethics, with Katarzyna de Lazari-Radek (2014)
Ethics in the Real World (2016)
The Most Good You Can Do: How Effective Altruism Is Changing Ideas About Living Ethically (2015)
The Life You Can Save: Acting Now to End World Poverty (2009; 2nd edition 2019 available free as eBook and audiobook from www.thelifeyoucansave.org)
The Ethics of What We Eat: Why Our Food Choices Matter, with Jim Mason (2006)
The President of Good and Evil: The Ethics of George W. Bush (2004)
Pushing Time Away: My Grandfather and the Tragedy of Jewish Vienna (2003)
One World: The Ethics of Globalisation (2002; revised edition, One World Now, 2016)
Writings on an Ethical Life (2000)
A Darwinian Left (2000)
Ethics into Action: Henry Spira and the Animal Rights Movement (1998)
Rethinking Life and Death: The Collapse of Our Traditional Ethics (1995)
How Are We to Live? Ethics in an Age of Self-interest (1993)
Should the Baby Live? The Problem of Handicapped Infants, with Helga Kuhse (1985)
The Reproduction Revolution: New Ways of Making Babies, with Deane Wells (1984)
Hegel (1982)
The Expanding Circle: Ethics, Evolution, and Moral Progress (1981; 2nd edition, 2011)
Marx (1980)
Animal Factories, with Jim Mason (1980)
Practical Ethics (1979; 3rd edition, 2011)
Animal Liberation: A New Ethics for our Treatment of Animals (1975; 2nd edition, 1990)
Democracy and Disobedience (1973)