Public welfare. Quancheng Study Room is a cultural public service platform jointly built by Shandong Provincial Department of Culture and Tourism, Shandong Provincial Library, Shandong Provincial Cultural Market Administrative Law Enforcement Corps and Shandong Provincial Cultural Industry Promotion Center. This platform is a free public welfare platform, which aims to provide the public with cultural services such as books, e-books, cultural creative products and cultural and artistic experiences, actively promote the development of cultural services and cultural industries, and promote the prosperity of cultural undertakings and the progress of social civilization.