What books must I read to learn geomantic geography and fortune telling?

The Book of Changes is a required reading and a basic course.

Seeing that there are many schools of Feng Shui, you can decide for yourself. Feng Shui, Yin Zhai Yang Zhai. In recent years, the "Eight Houses Mirror" of Yangzhai is easy to understand. Yin Zhai is very abstruse, so it is not recommended to study, because it is easy to make mistakes if you are not skilled.

Watching Ma Xiang is quite pushing.

Fortune telling is easier to understand than the four-column method in eight-character fortune telling.