Books ready for collection

Had a workshop at a library in Stuttgart today. Most of the books are in closed stacks in the basement and users have to order them via the catalogue computer. Downstairs a librarian gets a print out of the order, finds the book, puts the order slip inside the front cover and places it in a box. The box is tranpsorted upstairs and the books are delivered to the collection area ready to be picked up by whoever ordered them. That's what you can see here.