Forty years ago, Johnny Ball wrote his first Think of a Number TV show, which opened the door to a whole new genre of programmes based on maths and science. He drew in audiences of all ages, and influenced a generation. While Johnny had no formal university experience in mathematics he made it his hobby, and after being a drummer, comedian, comedy writer and TV presenter, he turned this into a second career, one that continues to this day. Today he lectures on mathematics and science to readers, viewers and listeners of all levels and ages.
