The book store on valid according to category And according to the principle of the arrangement of the books on the shelves, so that users can find books that are easy to get to the library held books is released quickly.
Book store on the first floor in the correct category. Principles and sort the books on the shelves. So users can easily find the desired book. And to provide library staff with leadership books out at a glance.
Books store on the floor in the correct category. The principle and arrange the books on the floor. So that the user can find the books needed conveniently.