The Salmon of Doubt: Special Edition

The Salmon of Doubt: Hitchhiking the Galaxy One Last Time is a posthumous collection of previously published and unpublished material by Douglas Adams. It consists largely of essays about technology and life experiences, but its major selling point is the inclusion of the incomplete novel on which Adams was working at the time of his death, The Salmon of Doubt (from which the collection gets its title, a reference to the Irish myth of the Salmon of Knowledge).