Geomantic literature can be divided into ancient and modern geomantic literature, such as Funeral Book, Shake the Dragon Sutra, Suspect the Dragon Sutra, Tianyu Sutra, Preface to Qingnang, Aoyu in Qingnang, Zhao Jing of Du Tianbao and New Book of Recalibration Geography. Modern Feng Shui literature such as Yin and Yang Studies and China Feng Shui Juexue.