The whole article reads smoothly, because there are many pictures and clear arrows, so it is easy to understand. But the concrete effect is really stretching and long-term practice.
After reading it, I feel that every subject is a systematic project, and it is much easier to look at the problem on the shoulders of predecessors than to explore it by myself. Rome wasn't built in a day, and it takes time to wash it before it can be changed unintentionally. This book can be used as a reference book and can be consulted at any time, so it is more targeted when stretching!