This book is like a cross between Futurama and Sideways Stories, and is probably a major inspiration for both. Supposedly made from rejected Doctor Who plots. Great for both fans of sci-fi and for those less familiar with the genre. Other topics covered include philosophy, politics (creepily prescient), and bureaucracy. The voice and humour is very British, so the style will probably remind American readers of Monty Python and Harry Potter at the same time.