One. Dollar.
Granted there are some cons. I mean people aren't selling super tip-top shape hardcover books for a buck. They are old library books, so the pages are wrinkled, the covers are dented, and there are those cursed library stickers on them (that don't. come. off. WHY).
But when you are a poor (as in "so-broke-it's-really-quite-pathetic") high schooler, you can't really afford to buy nice books, so who am I kidding.
Anywho, here's my most recent library sale cart raid.