I remember my first encounter with this story in 1974, courtesy of John Miller (now at James Madison, then at Rutgers). I was an imprerssionable undergrad at the time. And he kept raving about it. So I got a copy and read it over the summer. Among the best advice I ever received before deciding to drop out of school and head for the Coast.
In this gendre I'd add 'Mr. Tompkins Adventures in Wonderland' by George Gamow. Lots of lite mathematical physics. One of my roommates of the time used to go crazy over this book.
Both these books would make great movies, now that I think of it.
Rebecca Goldstein's 'Mind-Body Problems' is good too. Actually I'd like to see Woody Allen make this one into a movie.