The Ultimate Hitchhiker's Guide to the Galaxy by Douglas Adams
I'm not normally a fan of science fiction, but this is a great book. Plus, you're getting 5 novels for the price of one.
This outrageous volume contains six zany, out-of-this-world adventure stories by this incomparable novelist. From the very first to the very latest—all best sellers—includes The Hitchhiker's Guide to the Galaxy; The Restaurant at the End of the Universe; Life, the Universe and Everything, So Long and Thanks for all the Fish; Young Zaphod Plays it Safe; and Mostly Harmless. 768 pages.