Life, the Universe and Everything is the third book in the five-volume Hitchhiker's Guide to the Galaxy science fiction "trilogy" by British writer Douglas Adams. The title refers to the Answer to Life, the Universe, and Everything.

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Also contained in:

- [Hitch Hiker's Guide to the Galaxy: A Trilogy in Four Parts][1]

- [Hitchhiker's Trilogy](https://openlibrary.org/works/OL2163696W)

- [More Than Complete Hitchhiker's Guide][2]

- [Ultimate Hitchhiker's Guide to the Galaxy](https://openlibrary.org/works/OL2163706W)

[1]: https://openlibrary.org/works/OL2163692W

[2]: https://openlibrary.org/works/OL2163713W