I went to the Wheaton Public Library Book Sale today looking for books and came back with one comic book and one comic book-related book:
Blue Monday v3: Inbetween Days - Its a former library book. Its got library stickers all over the outside but it was dirt cheap at just $1 and its in fairly good shape. I enjoyed the first two collections of Blue Monday and I'm ready for more.
Comics & Sequential Art by Will Eisner - I was shocked and amazed that I found this and that all they wanted for it was $1.50. Had to buy it must read it.
Wikipedia: Blue Monday - Comics & Sequential Art