Peter Singer is often described as the world's most influential philosopher. He is also one of its most controversial. The author of important books such as Animal Liberation, Practical Ethics, Rethinking Life and Death, and The Life You Can Save, he helped launch the animal rights and effective altruism movements and contributed to the development of bioethics. Now, in Ethics in the Real World, Singer shows that he is also a master at dissecting important current events in a few hundred words.