Palmistry and physiognomy can directly or indirectly reflect people's physiological diseases, which has great theoretical support. You can start from this aspect and read books on palm disease prediction.
If you want to learn the state of being a magic stick, you'd better learn the basic knowledge of eight characters such as five elements and four pillars prediction. That's the point. Because some books divide people's areas from the five elements and the inferred five mountains to judge people's characteristics. Some books infer from the twelve constellations, and some directly divide the palm into several equal parts. There are many ways, but I personally don't agree. I think they are too fancy and the practical application effect is not obvious.
Another key point is that you can't judge a person's fate by reading his palm and face. The most effective application is to have an intuitive understanding of this person's personality and character, and you can make a preliminary judgment when you meet someone. This is especially helpful for dealing with people and communicating, and it is worth learning.
If you want to study, you can read my blog. There are a few simple judgments I wrote to others. Although it is not much, it is quite essence. The main reason is that not many people are willing to post pictures on Baidu, so I won't write more. Summarize more, observe more, you can do it without the guidance of a teacher, and you can improve quickly by taking more notes yourself.