Castle Roogna
Piers Anthony
Xanth (3)
Beyond belief
Roy Johansen
Without prejudice
Andrew Rosenheim
Captain's Fury
Jim Butcher
Guns, germs, and steel: the fates of human societies
Jared M. Diamond
A brief history of time
Stephen Hawking
Death by black hole: and other cosmic quandaries
Neil deGrasse Tyson