Hitchhiker's Trilogy (Hitch Hiker's Guide to the Galaxy / Restaurant at the End of the Universe / Life, the Universe, and Everything)

The increasingly more inaccurate trilogy of the Hitchhiker's Guide to the Galaxy, the book that tells you the most useful thing in the universe - a towel - gives you the Answer to Life, the Universe and Everything, introduces you to Arthur Dent and then destroys Earth, his home planet, and proves that no matter how bad things seem, you can always round it off with breakfast at Milliways. Very well worth reading, very fictional and exceptionally funny.