Why are so many people frightened by mathematics? In this family event, David Acheson, author of the popular bestsellers 1089 and All That and The Calculus Story, explains why maths is full of wonderful surprises that anyone can enjoy – from mind-reading number tricks to helping to play the electric guitar. And on the way, he will consider how to measure pi, how not to prove Pythagoras’s theorem, and how pizza can help with getting to grips with infinity. He will even consider whether mathematics can explain the most famous illusion in the whole history of magic – the legendary Indian Rope Trick. Most importantly of all, however, David will try to show how mathematics, at its very best, has a certain magic of its own.