Here is a list of The Hitchhiker’s Guide to the Galaxy Books in Order.
The Hitchhiker’s Guide to the Galaxy (1979)
From the blurb:
It’s an ordinary Thursday lunchtime for Arthur Dent until his house gets demolished. The Earth follows shortly afterwards to make way for a new hyperspace express route, and his best friend has just announced that he’s an alien. At this moment, they’re hurtling through space with nothing but their towels and an innocuous-looking book inscribed, in large friendly letters, with the words: DON’T PANIC.…
The Restaurant at the End of the Universe (1980)
From the blurb:
If you’ve done six impossible things this morning, why not round it off with breakfast at Milliways, the Restaurant at the end of the Universe?
Which is exactly what Arthur Dent and the crew of the Heart of Gold plan to do….
Life, the Universe and Everything (1982)
From the blurb:
Following a number of stunning catastrophes, which have involved him being alternately blown up and insulted in ever stranger regions of the Galaxy, Arthur Dent is surprised to find himself living in a cave on prehistoric Earth. However, just as he thinks that things cannot get possibly worse, they suddenly do.…
So Long, and Thanks for All the Fish (1984)
From the blurb:
There is a knack to flying. The knack lies in learning how to throw yourself at the ground and miss. It’s not an easy thing to do and Arthur Dent thinks he’s the only human who’s been able to master this nifty little trick – until he meets Fenchurch, the girl of his dreams.…
Mostly Harmless (1992)
From the blurb:
Arthur Dent hadn’t had a day as bad as this since the Earth had been blown up.
After years of galactic wanderings, Arthur finally settles on the small planet Lamuella and becomes a sandwich maker. Looking forward to a quiet life, his plans are thrown awry by the unexpected arrival of his daughter….
And Another Thing… (2009)
From the blurb:
Arthur Dent led a perfectly ordinary, uneventful life until the Hitchhiker’s Guide to the Galaxy hurled him deep into outer space. Now he’s convinced a cruelly indifferent universe is out to get him.
And who can blame him?…