It is the oldest geography book full of myths and legends. Eighteen volumes of Shan Hai Jing Quan Shu; Among them, Mountain Classics has five volumes; Eight volumes of Hai Jing; "Wild Classic" four volumes; A volume of Haineijing, * * * about 3 1000 words. Mountain Classics are divided into five parts: Nanshan Classics, Xishan Classics, Beishan Classics, Dongshan Classics and Zhongshan Classics. Sea classics are divided into overseas classics, domestic classics and wild classics. Mountain Scenery is a part of Shan Hai Jing, an ancient book in pre-Qin China. There are five volumes of Nanshan Jing, Xishan Jing, Beishan Jing, Dongshan Jing and Zhongshan Jing, which mainly record the mountains in ancient geography. Sea crystals are divided into overseas crystals, domestic crystals and wild crystals.