There are formal classes in the Book of Changes.

There are also many masters in the folk who hold training courses, but they may not teach you real kung fu. Some orthodox Yi-ology universities, such as Peking University, Shanda University, Nanjing University and Tsinghua, specialize in this subject. Learning the Book of Changes depends on great understanding and creativity, or great opportunities. After studying the Book of Changes for so long, I feel that I never want to go out after coming in. What a shame.