1, the concept and origin of international law, written by Mr. Li Haopei, an authority in the field of international law in China. It seems that such a thin book is not enough to understand the relevant concepts of international law today, but the understanding and interpretation of international law in the book is the result of the author's own thinking, and many things are still correct for today's domestic law. It is precisely because of this independent thinking of scholars that the book Concept and Origin of International Law is still a must-read textbook for studying international law.

2. Deng's book An Introduction to International Economic Law, based on the latest foreign-related economic laws promulgated and implemented in China in recent years, international conventions, international practices and laws of relevant countries, focuses on the basic theoretical knowledge of international economic law, refers to the latest legal academic materials, and explores new problems and new situations in current international economic activities, striving to reflect the new achievements of international economic law research in time and achieve the unity of science, system and practicality.

3. Case Analysis of International Economic Law is a book published by Renmin University of China Press in 2006. Since its publication in 2000, it has been widely welcomed by readers because of its clear theoretical problems, thorough analysis, clear knowledge points and strong practicability.

4. Case Analysis of Private International Law is a book written by Xu Qingsen. As one of the case analysis textbooks of "2 1 Century Law Series", this book is compiled as a supporting textbook of Private International Law, a national planning textbook for general higher education in the Eleventh Five-Year Plan (edited by Zhang, Renmin University of China Press, 3rd edition, 2007).