It looks a bit disorganized doesn't it. My favourite secondhand bookshop in Newcastle is Cooks Hill Book Shop and it is very organized but there is a shop in Hamilton too that looks exactly like this. That shop is a nightmare to browse in and I am not surprised there are so many books, it is impossible to find anything you would like because it is so messy.
@onewing I doubt they sold any books as people where just taking photos & looking. Lots of the books looked damp & you will see tomorrow that you would never spend good money only on the ones in the first part of the shop.