Jeff McMahan began his doctoral work at Oxford University under the supervision of Jonathan Glover and Derek Parfit, then completed the PhD at Cambridge University under the supervision of Bernard Williams. He is the author of The Ethics of Killing: Problems at the Margins of Life (Oxford University Press, 2002) and Killing in War (Oxford University Press, 2009). He has several other books forthcoming from Oxford University Press, including a collection of essays called The Values of Lives, a book on war intended for both academic and nonacademic readers called The Right Way to Fight, and a sequel to his 2002 book called The Ethics of Killing: Self-Defense, War, and Punishment.