Dr. Katarzyna de Lazari-Radek is a philosopher who works at the University of Lodz in Poland. She is interested in ethics, especially utilitarian ethics, ethical problems of globalization, bioethics, and animal rights. Currently (together with Peter Singer) she is writing a book on a Victorian moral philosopher, Henry Sidgwick, and contemporary ethics. She is a mother of two wonderful kids, Jan and Zosia, who surprise her every day with how thoughtful they are.
Prof. Peter Singer is professor of bioethics at Princeton University, and laureate professor at the University of Melbourne. His books include Animal Liberation, Practical Ethics, The Ethics of What We Eat, and The Life You Can Save. He has three daughters, who he introduced to philosophy at an early age, and three grandchildren who are just starting to ask philosophical questions.