The Strange Case of Dr. Jekyll and Mr. Hyde - Vladimir Nabokov, Dan Chaon, Robert Louis Stevenson
I read this one because I had to for a class, and I wasn't really looking forward to it after having seen one of the movie versions and not being particularly impressed. People often say, "The book is better than the movie," and in this case, that's certainly true. I found the book to be very interesting and worth the time. Now I know for myself that it's a classic with good reason.