This is the 'philosophy and. .' book that really needed to be written – because it is about The Hitchhiker's Guide to the Galaxy. For (to paraphrase the great man himself) Hitchhiker's is not above a little philosophy in the same way that the sea is not above the sky. Moreover: this edited collection combines accessibility – and some humour – with rigour. It contains an introduction, nine chapters, a glossary, and multiple indexes. Topics covered include the meaning of life (and '42'), vegetarianism, the ethics of entertainment, artificial intelligence, parallel universes, God, and philosophical method.