Books are generally divided into three categories: philosophy, social science and natural science. Books are the main tools used by human beings to record all their achievements, as well as the important media for human beings to blend their feelings, acquire original knowledge and inherit their experiences, and have made great contributions to the development of human civilization.

Books are divided into six categories: China's novels, foreign novels, computers, family health care, life and leisure, and stock funds. Audio and video are divided into six categories: musical scenery, foreign classics, foreign light music, drama and opera, national musical instruments and children's music; Film and television are divided into six categories: series, popular science education, children's stories, fitness, feature films and game answering software.