Push the library service to the public. Book bar is a popular reading place in some cities in recent years, which combines the characteristics of libraries, bookstores, teahouses or cafes. People can browse fashion magazines and popular novels while drinking tea, coffee and chatting, and relax in soothing music. The purpose of the self-service newsstand in the book bar is to move the library service to the public and meet the spiritual needs of the public to read books. Newsstand refers to a small mobile house that sells and buys newspapers and magazines in public places.