About this book
Guardian Books related videos/podcasts etc
To view a video of Terry Pratchett on science, technology and his favourite Discworld characters click here.
The 4th book in the "Science Of Discworld" series, this includes a brand new story from Pratchett, combined with cutting-edge science and philosophy from Ian Stewart and Jack Cohen. This time they take on the really big questions: God, the universe and everything else! The first book in this interesting series for 8 years; previous titles have sold more than half a million copies, and are all reissued this month.
Marjorie Daw is a librarian, and takes her job - and indeed the truth of words - very seriously. She doesn't know it, but her world and ours - Roundworld - is in big trouble. On Discworld, a colossal row is brewing. The Wizards of Unseen University feel responsible for Roundworld (as one would for a pet gerbil).