I think this store might be haunted, which made my visit extra special! Within apporox 30 minutes, on three occasions in three separate sections (but all on the lower floor) books popped off the shelf and landed at my feet. It's difficult to explain, but they didn't simply slide off, they popped off, as though pushed, and without my having touched them. One landed between another person and me, and we both looked at each other confused. I eventually saw a forth book pop off the shelf and a staff member stopped to pick it up and I told her what I had seen. She said I wasn't the first person to tell them that, and that staff regularly saw this occur when the store was closed.
I'm not sure if I believe in ghosts, but I found the possibility of one helping with my reading selection really added to my experience at this wonderful store! I can't wait until I can return to see if it happens again!