Peter Singer is an Australian moral philosopher He is the Ira W DeCamp Professor of Bioethics at Princeton University and a Laureate Professor at the Centre for Applied Philosophy and Public Ethics at the University of Melbourne He specialises in applied ethics and approaches ethical issues from a secular utilitarian perspective He is known in particular for his book Animal Liberation 1975 in which he argues in favour of vegetarianism and his essay Famine Affluence and Morality in which he argues in favour of donating to help the global poor Description above from the Wikipedia article Peter Singer licensed under CCBYSA full list of contributors on Wikipedia