JACK COHEN

Roundworld is in trouble again, and this time it looks fatal. Having created it in the first place, the wizards of Unseen Univeristy feel vaguely responsible for its safety. They know the creatures who lived there escaped the impending Big Freeze by inventing the space elevator - they even intervened to rid the planet of a plague of elves, who a...

Popular science tour de force from bestselling authors, on evolution of intelligence, culture and mind.

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 s...