There are such books, and the secretary who talks about fitness knowledge and basic movements asked me to buy some. You can search on Taobao, there are many. But to be honest, self-study is difficult to learn, and it is best to find a tutor to take care of it. You can sign up for a few courses without dozens, and you can learn about 10. Then you can use the knowledge taught by the coach to read, which will get twice the result with half the effort.