Come with time.
Don't bother just stopping in; come with time to spare there's far too much to check out. Everyone could easily walk out with a stack of books, and save a bunch of bucks compared to buying them all brand new. Plus, even though they're used it's still easy to find books that are used but basically in shape like it's new. The owners let their golden lab lay around (a plus for animal lovers), there's an exotic parrot caged and a cat hanging out as well. They validate up to an hour if you park in the Dinkytown parking lot right behind the building.