The Hitchhiker's Guide to the Galaxy a human-like alien writer for the eccentric, electronic travel guide "The Hitchhiker's Guide to the Galaxy", by hitchhiking onto a passing Vogon spacecraft. Following his rescue, Dent explores the galaxy with Prefect and encounters Trillian, another human who had been taken from Earth prior to its destruction by the President of the Galaxy, the two-headed Zaphod Beeblebrox, and the depressed Marvin, the Paranoid Android. Certain narrative details were changed between the various adaptations. The various versions follow the same basic plot but they are in many places mutually contradictory, as Adams rewrote the story substantially for each new adaptation. Throughout
Don't Panic: The Official Hitchhiker's Guide to the Galaxy Companion Douglas Adams & The Hitchhiker's Guide to the Galaxy") was published in the UK by Titan Books in June 2002, and contains further additional material, this time by M. J. Simpson (). An updated edition was published by Titan Books in October 2003 (). A further edition was published by Titan Books in September 2009 (). Don't Panic: The Official Hitchhiker's Guide to the Galaxy Companion Don't Panic: The Official Hitchhiker's Guide to the Galaxy Companion is a book by Neil Gaiman about Douglas Adams and "The Hitchhiker's Guide to the Galaxy". The book was originally published in 1986 in