The free courses of Chinese public education are generally recorded and broadcast online school courses, which can be directly listened to online with an account number and password. However, books are still the mainstay, and videos are only auxiliary.

Zhonggong Education Group was established in 1999. After more than 22 years of painstaking development, Zhonggong Education has developed from an information technology and education service institution founded by Peking University graduates to a comprehensive enterprise group in the education service industry, and has become a large-scale knowledge industry entity integrating face-to-face teaching and training, online distance education, publication and distribution of books, teaching materials and audio-visual products.