Some profs just over ordered books.
Some students bought books from other privately owned book stores across the street.
Some students dropped out of class and hence did not buy books that were needed for 2nd half of the semester.
Above reasons contributed to quite a bit of the books not getting sold.
But yeah, I had to uncrate the dang books, and a few weeks later, crate the same books to ship back to publishers.
I bet I'm one of the very few of the student body who learned how to work with Pallet trucks.