In my pathetic excuse for a heart, I hold a tremendous fondness for the Hitchhiker's Guide to the Galaxy series. Like, I'd get into it, but it's truly embarrassing how much I love this stuff. Y'know... Turning point in my childhood. If you haven't read the series before, I urge you to pick up the first book (it's the best).
Even as a kid, I felt that the Hitchhiker's Guide books deserved more than the goofy-cheesy cover treatments they often received (heh, I threw away the dust jacket on my all-in-one volume because the naked book was better). So, for our latest Typography class assignment to redesign book covers, I chose the first three in the series. I wanted something fun and subtly retro but also sophisticated. Some progress was tracked on Twitter, if you care.