In violation of the law, the Ministry of Education issued two documents: extracurricular reading and sleep management for primary and secondary school students, which standardized the selection criteria for students' extracurricular reading and the necessary sleep time. The document requires that the recommended catalogue of extracurricular reading materials on campus should be made public to parents of students, adhere to the principle of voluntary purchase, and prohibit students from compulsory or disguised compulsory purchase of extracurricular reading materials, and schools may not organize unified purchase.