An introductory book on Feng Shui to see which ones are simpler.
I don't know which one you want to learn. You can try Zhang Jiuyi's Geography Cut to Husband.
1. The situation school pays attention to investigating the geographical situation of the area, mainly dragons, sand, caves, water, good or bad luck. If you want to learn this genre of Feng Shui, you should read more books by Guan Ju and Guo Pu.
2. The style of reasoning is mainly based on some theories of ancient China techniques, including Yin and Yang, Five Elements, Eight Diagrams, River Map, Luoshu, Tiangan and Dizhi. Of course, some things are applied to Qimen, Liu Ren and Yin Na, which makes the style of reasoning divided into many small schools. If you want to learn, it will be very complicated. If you want to learn this kind of Feng Shui, then you'd better choose one of the schools to learn it, which is relatively simple and practical.