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Science of Discworld Series
cover_9780553397994
Author: Terry Pratchett, Ian Stewart and Jack Cohen | Narrator: Stephen Briggs and Michael Fenton Stevens
Release Date: December 22, 2015
The fourth book in the Science of Discworld series, and this time around dealing with THE REALLY BIG QUESTIONS, Terry Pratchett's brilliant new Discworld story Judgement Day is annotated with very big footnotes (the interleaving chapters) by mathematician Ian Stewart and biologist Jack Cohen, to bring you a mind-mangling combination of fiction, cutting-edge science and philosophy.
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Author: Terry Pratchett, Ian Stewart and Jack Cohen | Narrator: Stephen Briggs and Michael Fenton Stevens
Release Date: June 09, 2015
The wizards discover to their cost that it’s no easy task to change history.

Roundworld is in trouble again, and this time it looks fatal. Having created it in the first place, the wizards of Unseen University feel vaguely responsible for its safety.
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cover_9780804193610
Author: Terry Pratchett, Ian Stewart and Jack Cohen | Narrator: Jack Cohen
Release Date: January 20, 2015
Roundworld, aka Earth, is under siege. Are three wizards and an orangutan Librarian enough to thwart the Elvish threat.
 
When the wizards of Unseen University first created Roundworld, they were so concerned with discovering the rules of this new universe that they overlooked its inhabitants entirely.
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cover_9780804193450
Author: Terry Pratchett, Ian Stewart and Jack Cohen | Narrator: Stephen Briggs and Michael Fenton Stevens
Release Date: June 03, 2014

Not just another science audiobook and not just another Discworld novella, The Science of Discworld is a creative, mind-bending mash-up of fiction and fact, that offers a wizard’s-eye view of our world that will forever change how you look at the universe.

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