An insider's view of how the massive black hole was discovered at the Galactic Center.

'One of the greatest achievements in comedy. A work of staggering genius' - David Walliams An international phenomenon and pop-culture classic, The Hitchhiker's

NAMED ONE OF THE BEST BOOKS OF THE YEAR BY NPR • A gripping science fiction saga about three students from a school for those with extraordinary powers, from

"A prince and a mage must untangle the riddles from their shared past to save the future of the empire-or risk seeing everything they both both love destroyed"-

‘One of the world's sanest, smartest, kindest, funniest voices’ – Independent on Sunday This 42nd Anniversary Edition includes exclusive bonus material fr