“It is said that despite its many glaring (and occasionally fatal) inaccuracies, the Hitchhiker’s Guide to the Galaxy itself has outsold the Encyclopedia Galactica because it is slightly cheaper, and because it has the words ‘DON’T PANIC’ in large, friendly letters on the cover.” (Adams, Douglas (1979). The Hitchhiker’s Guide to the Galaxy. Pocket Books. p. 3. ISBN 0-671-46149-4.)