Who knows what courses the Book of Changes has?

I ching is the name of an ancient article;

Zhouyi is the general name of fortune-telling referred to by modern people;

Its classification includes: eight characters, six hexagrams, Wei Zi Doushu, Daoism, Liu Ren, iron plate magic, Taiyi magic, Feng Shui and so on;

The more common ones are eight characters, crape myrtle and feng shui;