As for textbooks, I recommend the following books: Bibliography of Modern Chinese:
Modern Chinese, edited by Huang Borong and Liao Xudong, Higher Education Press (required reading)
Hu Yushu s Modern Chinese and Shao Jingmin s General Theory of Modern Chinese;
"Modern Chinese Vocabulary" was published by Fu Huaiqing in Peking University.
800 words in modern Chinese; Lv Shuxiang Commercial Press;
Linguistic reference books:
Outline of Linguistics, Peking University Publishing House (the most important),
A Pragmatics Course by Professor Suo Zhenyu of Peking University.
Saussure Commercial Press, a course in general linguistics;
Language Understanding and Cognition Cui Xiliang Beijing Language and Culture University Press
Grammar reference book:
Modern Chinese grammar research course; Lu Jianming Peking University Publishing House;
Practical Modern Chinese Grammar Liu Yuehua Commercial Press;
Grammar of Chinese as a Foreign Language Qi Huyang Fudan University Press;
And the teaching bibliography of grammar system for teaching Chinese as a foreign language.
If you want to take the master's degree in international Chinese education, besides the above, there are two books: Introduction to Teaching Chinese as a Foreign Language, Zhao Jinming Commercial Press and Introduction to Teaching Chinese as a Foreign Language, Liu Xun, Beijing Language and Culture University Press. In China culture, Cheng's Introduction to China Culture and Introduction to China Culture, as well as some cross-cultural international knowledge. Pedagogy and educational psychology. It is necessary to read more books, accumulate more books and dabble in some cultural common sense and knowledge.