Ten Books of Yangzhai (mainly about appearance, with basic knowledge such as choosing a day and looking for ghosts and gods). As an introductory material)-Yang Zhai loves the masses (written by Zhang Qing, Ba Zhai Fa is acceptable as an introduction, and it is often criticized for its low accuracy, but it is widely used by the people, and its basic theory can be referred to because of easy learning)-Shen Shi Metaphysics (1998).
After having a certain foundation, I will come back to study such famous books as "The Book of Burial".
The above books are provided free of charge online, and can be found and downloaded.
For reference.