In 1996, while doing a Maths PhD at Sydney University, Adam Spencer won the Melbourne International Comedy Festival Raw Comedy Championship. He went on to host the triple j Breakfast Show with Wil Anderson before graduating to 702 ABC Sydney where he secured record ratings for the station for eight years. His TV credits include The Glasshouse, Good News Week, The Project, Q&A and, with Dr Karl, Sleek Geeks. He is the author of several popular maths books including Big Book of Numbers, World of Numbers, Time Machine, and The Number Games. He lives in Sydney. Roy Chen is a Sydney-based illustrator and designer.