Shopping guide and loading work. Some customers don't know the location of the books they want, so they need the staff to guide them. If there are no books on the shelf, they should be put on the shelf. In order to solve these problems, we must recruit people. Books are the media used by human beings to record information points, and also the important media for human beings to blend feelings, acquire knowledge and inherit experience, which has made great contributions to the development of human civilization.