What are the introductory books on Feng Shui?

The book "Geography of Being a Son" written by two brothers, Xu Shanji and Xu Shanshu, is a very authoritative masterpiece, which specifically expounds the theory and application of Feng Shui.

Since its publication in this world, this book has been recommended by all scholars, and no one who studies the shape of the dragon cave does not read this book. This book discusses the water in the dragon sand cave in a comprehensive and detailed way. It not only copied the achievements of predecessors, but also told all the stories about self-thinking, experience and honesty.