Zheng publicly stated that he has a lot of opinions on the textbooks published by the People's Education Press. There is something wrong with the typesetting of illustrations, and the teaching materials also need attention. He often looks through primary school textbooks in books, and often sees acquaintances editing or even posting their own works in Chinese textbooks published by People's Education Press. It can be seen from this sentence that the People's Education Edition not only has problems with illustrations, but also has great problems with content. Some editors even put their own content in textbooks for children to learn.