Yang Gong's major works

Geomantic omen theory works: Yang Gong wrote nine books according to the Instructions for the Son of Man: Yi Long Jing, Yao Long Jing, Picture Clip, Four Points Method, Li Zui Fu, Painting Sand, Fetal Abdominal Jing, Looking at the Dragon Jing, and Inverted Staff Method; According to Shu Shu Shu series (IX), there are five books: Yilong Jing, Hanlong Jing, Burying with an Inverted Staff, Qingnangao Yu and Tian Yu Jing. There are many records about Yang Gong's geomantic theory works in other geomantic books. According to textual research, there are at least three most reliable works by Yang Junsong: Qingnangao Yu, Tianyu Jing and Yuchi Jing.