I’m Will MacAskill, an Associate Professor in Philosophy at Lincoln College, Oxford, and author of Doing Good Better (Gotham Books, 2015). I’ve also cofounded two non-profits: 80,000 Hours, which provides research and advice on how you can best make a difference through your career, and Giving What We Can, which encourages people to commit to give at least 10% of their income to the most effective charities. These organisations helped to spark the effective altruism movement.