On the Lighter Side
I happened across this book recently while trolling amazon.com for something or another: The Manga Guide to Calculus. Also of interest to game designers and other geek-like types are The Manga Guide to Statistics, The Manga Guide to Physics, and The Manga Guide to Statistics.
At this point in your career, you may have passed these topics by in high school or college (or suffered through them just enough to pass). I am of the belief that there is much to be learned from number patterns, though, since a) they surround us in nature and in our everyday lives and b) the human brain usually groks them. So, I am a believer in exploration, especially through manga.