(Thinking back to when I was looking for a job after graduation, I was very confused. I don't know what a commercial product is or what a commercial product manager does. I just saw in the job description on the official website of Baidu School Recruitment that mathematics and statistics related majors are preferred, and there is no coding requirement. As a student majoring in mathematics, I can only program in MATLAB, and I am not good at typing codes in computer language. Immediately tempted. It was not until I entered this position that I started to get in touch with the business. After 6 years of exploration, I gradually grew from a junior commercial product designer to a senior commercial product designer. Did I have a deeper understanding of this mysterious position? The question is what is a commercial product and what does the corresponding commercial product manager do? Why should I take this commercial product design course? How to study this course? Listen to me one by one below.)