The Science of Discworld

The Science of Discworld is a series of four books written by Terry Pratchett and popular science writers Ian Stewart and Jack Cohen. The books alternate between a typically absurd Discworld story and serious scientific exposition after each chapter. • The Science of Discworld (1999) • The Science of Discworld II: The Globe (2002) • The Science of Discworld III: Darwin's Watch (2005) • The Science of Discworld IV: Judgement Day (2013)