There are many books on this subject. Let me introduce some foreign textbooks to the landlord. Foreign textbooks are more concise and easy to understand than domestic ones, and are more suitable for landlords to learn. But the landlord doesn't need to learn too much, because the university will learn Man Kun's Principles of Economics, and the landlord knows it. In addition, I recommend Krugman's International Economics. It is a little difficult for the landlord to read the international economic part of the first volume, but the international financial part of the second volume is ok. There is also the Essentials of Investment by Bodie/Kane/Marcos (co-authored by three people), which can only be understood after reading the first two books, and it is also very suitable for the landlord. These are the winners of the Nobel Prize in Economics, and all the books are well written. I suggest the landlord read it carefully. There are also ordinary textbooks, such as Management of Commercial Banks by Dai Guoqiang and Analysis of Financial Statements by Wang Ping, which are simple subjects to understand. Recommend the landlord to have a look. In addition, the landlord is recommended to read Benjamin's Introduction to Psychology, which is easy to understand and helpful for the analysis of financial, especially economic phenomena.