Thomas Calculus: a classic foreign textbook, published in version 10. Higher Education Press has a Chinese translation, and it is a thick and big book. The first reading is simpler than most calculus textbooks for science and engineering in China, but the content is richer than that of domestic textbooks, in which many computer-aided means are used. For example, many three-dimensional images are visually presented to readers. In addition, due to the application of computer-aided teaching, the book focuses on mathematical modeling, that is, using mathematics to solve practical problems, and complex calculations are handled by computers, which should be more than enough for undergraduates and even graduate students of economic management. Although this book is rich in content, it is not rigorous in theory, focusing on intuitive images and is suitable for beginners and applications. Then there is Calculus published by the National People's Congress, which is a classic textbook for domestic economic management majors. Its advantage is that it is aimed at economic management majors and has many tutorials, which is conducive to self-study. Finally, you can refer to two of the most popular introductory calculus books: Sword of Calculus and Sword of Calculus, Hunan Science and Technology Press. The former is about the calculus of unary function, but later it has been cancelled to confirm that the calculus in our school is a book written by our own teacher. How lucky you are! If you were taught by the teacher who published the book, you should have no problem with calculus. Your English this year is a new field of vision, but there will be an English placement test after entering school. However, according to experience, the English transferred to the professional examination has little to do with the teaching materials, so you can do more questions instead of paying too much attention to the English teaching materials. Finance is one of the most difficult majors to change. Hundreds of people sign up every year, but there are fewer than ten places. However, I wish you good grades and come on.