The Hitchhiker's Guide to the Galaxy Books in Order

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Douglas Adams's "The Hitchhiker's Guide to the Galaxy" is a science fiction series that began as a radio sitcom on BBC Radio 4 in 1978. The series includes five original novels written by Adams, with a sixth book, And Another Thing…, added by Eoin Colfer in 2009. The books are often described as a "trilogy in five parts." The series follows Arthur Dent, an Earthman who survives the destruction of his planet to embark on a journey across the galaxy. The complete series spans from 1979 to 2009. The series has been adapted into various formats, including television, stage, and film.

Publication order

In the order the books were originally released.

  1. Cover of The Hitchhiker's Guide To The Galaxy

    The Hitchhiker's Guide To The Galaxy

    1979 · Douglas Adams

    The Hitchhiker's Guide to the Galaxy is a 1979 science fiction comedy novel by Douglas Adams. It is based on the first four parts of his radio comedy…

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  2. Cover of The Restaurant at the End of the Universe

    The Restaurant at the End of the Universe

    1980 · Douglas Adams

    The Restaurant at the End of the Universe is the second book in Douglas Adams's Hitchhiker's Guide to the Galaxy comedy science fiction "trilogy,"…

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  3. Cover of Life, the Universe and Everything

    Life, the Universe and Everything

    1982 · Douglas Adams

    This is the third book in the five-volume Hitchhiker's Guide to the Galaxy science fiction 'trilogy' by British writer Douglas Adams. Its title…

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  4. Cover of So long, and thanks for all the fish

    So long, and thanks for all the fish

    1984 · Douglas Adams

    The fourth book of Douglas Adams's Hitchhiker's Guide to the Galaxy "trilogy," its title is the message left by the dolphins when they departed Earth…

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  5. Cover of Mostly Harmless

    Mostly Harmless

    1992 · Douglas Adams

    The fifth volume in the Hitchhiker series, this 1992 novel by Douglas Adams follows Random, the daughter of Arthur Dent, as she leaves her remote…

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  6. Cover of And Another Thing...

    And Another Thing...

    2009

    This 2009 novel is the sixth and final installment of Douglas Adams' The Hitchhiker's Guide to the Galaxy "trilogy of six books." Written by Eoin…

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✓ = numbering verified against the publisher's official series list.

Frequently asked questions

What order should I read the The Hitchhiker's Guide to the Galaxy books in?

Publication order — Widely recommended by readers and the publisher Pan Macmillan; the books form one continuous narrative following Arthur Dent. Start with “The Hitchhiker's Guide To The Galaxy.”

How many books are in the The Hitchhiker's Guide to the Galaxy series?

We list 6 books by Douglas Adams , published between 1979–2009.

Where can I buy the The Hitchhiker's Guide to the Galaxy books?

Each title above links to Amazon. See our affiliate disclosure.

Reading order compiled from author/publisher guidance and verified bibliographic data. Spotted a wrong order, a missing book, or any other mistake? and we'll correct it.