Basic knowledge: management foundation, introduction to tourism. If you want the direction of travel agencies, you should also have travel agency management, and the direction of hotels should have hotel management.
General books of management disciplines: management basics, microeconomics and macroeconomics (almost all students majoring in management will learn these disciplines, and if they are undergraduate majors, they will also learn advanced mathematics).
Professional books related to tourism management probably include: introduction to tourism, tour guide business, national tour guide knowledge base, travel agency management, hotel management, catering management, scenic spot management, tourism resource development, scenic spot planning and development, tourism economics, tourism law course, tourism geography, tourism psychology, tourism English, tourism management information system, etc. The first nine items are more important, but the latter can be learned. There are many books on tourism management, but the basic theories adopted are all extended from Introduction to Tourism.
There are other miscellaneous knowledge: accounting foundation, statistics foundation, marketing foundation, human resource management foundation.