Simon Singh

Simon Singh completed a PhD in particle physics and joined the BBC and worked on programmes such as Tomorrow's World and Horizon. His books include Big Bang, The Code Book and Fermat's Last Theorem, which was the first book about mathematics to be a No.1 bestseller in the UK. He will talk about the history of codes and code breaking, including a demonstration of a genuine Enigma cipher machine.

www.simonsingh.net