Now (Guiguzi fortune telling) (Guiguzi magic phase method) and so on. Excuse me, are these handed down by Mr. Guigu?

None of them were handed down from Guiguzi, but the experience of later generations. Guiguzi is a real person, but according to research, there is more than one person. To be sure, Wang Xu is also called Guiguzi. As far as the Three Kingdoms is concerned, Zhuge Liang didn't edit Guiguzi, and even the author of A Lesson Before School was someone else, because Zhuge Liang didn't write a book, but only had an outline, Long Zhong Dui and a model. The book Gangwon is also a forgery. The ancestor of Hengjia should be Su Qin. Su Qin wrote it under the pseudonym Guiguzi. Limited information, I hope I can help you.