TERRY PRATCHETT is the acclaimed creator of the bestselling Discworld series. He was appointed OBE and a Knight Bachelor in recognition of his services to literature.
IAN STEWART is a Fellow of the Royal Society, professor of mathematics at the University of Warwick, and author of numerous books on math and popular science, as well as science fiction novels co-authored with Jack Cohen.
JACK COHEN is a professor of biology and honorary professor of mathematics at the University of Warwick, and has co-authored several books with Ian Stewart.
