Starship Titanic by Terry Jones (and Dogulas Adams sort of)

If you find the information that this was written by a naked man hilarious, then you'll probably find the book funny. If, on the other hand, you respond to the information with a shrug and the thought that that must have been uncomfortable at times, you'll find the book similarly bemusing.

Conclusion: I Just Don't Get Douglas Adams, even when he isn't the one who wrote the book.