David Edmonds is a Distinguished Research Fellow at the Uehiro Centre for Practical Ethics at Oxford University and a former BBC radio journalist.  He is the author or editor of many philosophy books (and one on chess) which together have been translated into over two dozen languages.  These include (with John Eidinow), Wittgenstein’s Poker and, most recently, a biography, Parfit: A Philosopher and his Mission to Save Morality.  As well as Social Science Bites, David also hosts a couple of philosophy podcasts. Philosophy Bites, which he makes with Nigel Warburton, has had over 47 million downloads.