David Acheson is a British applied mathematician, best known for his popular maths book 1089 and All That (OUP, 2010), which has been translated into 11 languages. He is an Emeritus Fellow of Jesus College, Oxford, and was Oxford University's first winner of a National Teaching Fellowship, in 2004. He was President of the Mathematical Association for 2010-11, and now lectures widely on mathematics to young people and the general public. In 2013, David Acheson was awarded an Honorary D.Sc by the University of East Anglia for his outstanding work in the popularisation of mathematics.