Double-sided 79-page “Jade Lock Key” of the Four True Books of Geography

Dong Zhongqing’s “Numerology Techniques and Decisions-Four-Dimensional Time and Space Occupying Good and Bad Fortunes” page 446

Li Shunxiang’s “Four Pillars Collection”

Two Versions of Qu Wei’s “Four Pillars in One Word”

Four-Pillar Eight-Character “Ten Rigans Are Birthed in Each Month and Each Hour” Page 163

Four pillars and eight characters ancient book “Wei Jing Lun” page 106

Four-pillar numerology ancient book “Re-engraved by Mr. Qin Tianjian Ge Dingziping Daquan” page 88

Tian Yongan’s “Four Pillars of Truth” 162 pages double-sided

Ling Zhixuan “Four-Pillar Numerology Advanced Training Class Textbook”

Liu Keyun’s “Four Years Collection”

Yi Tiansheng’s “Essence of Yi’s Pattern” Bazi Numerology Operation Fourth Step Song Page 389

Su Fangxing: Pathology of the Triangle Law of Everything (Four Volumes) Compilation Edition

The First Volume of the Four Volumes of Bianzhitang’s New Collection of Yijing Collection and Explanation

Jiuzichen Trojan Horse Seven Politics and Four Surplus Training Materials Seven Politics and Four Surplus Courses (full version)

The ancient book of Yi Xue “Sixty-Four Hexagrams Money Lesson”

“San Chen Tong Zai”, an ancient book about seven political regimes and more than four times, written by Qian Rubi in Song Dynasty

Zhang Chengwu’s “The Application of Four Pillars and Six Yaos”

The four hexagrams in the ancient book of Fengshui “He Xuanqiao collects water and establishes the direction”

Lu Qinghe’s “Seven Politics and Four Surplus Straightforwardly Break the Life of Salary”

Lu Yangcai’s “Seven Politics and Four Surplus Modern Applied Studies”

Wang Rongjun’s “Seven Politics and Four Remains Calculus Example Explanation” Full HD Version

Xu Qinting’s “Explaining the Sixty-Four Hexagrams of the Book of Changes” (Volume 1 and 2)

Four Volumes, 12 Volumes, Page 433 of the Ancient Divination Book “Yilin Supplement”

Wen Molong’s “Cetian Liuyao Famous Master Explains Hexagram Four”