Who is the master of the Book of Changes in China, Fu Yichang or Zheng?

Fu Yichang and Zheng, the masters of the Book of Changes in China, are both formidable. According to relevant information, Fu Yichang is the Executive Dean of Dayi International Institute of Architectural Geomantic Culture, a lecturer of 20 10 brand of Chinese studies, a consultant of Shanghai Lu Chamber of Commerce, a consultant of Chinese studies of Oriental Real Estate, and a special consultant of many media easy-to-learn columns such as SouFun Weekly and Urban Housing. Zheng Tangshan, President of Hancheng College, Vice President of Huaxia Five Thousand-Year Environmental Science Research Institute, Associate Professor of Oriental University in the United States, Executive Vice President of International Cultural Forum, and the founder of the first China Traditional Culture and Yi-ology Forum in China. He has made in-depth research on the three-in-one geomantic omen of the ancient method, the eight characters of the new school, and the study of famous names, and has written books such as Mystery of Numbers, Holographic Geomantic omen of the ancient method, Jiugong Shenshu, Name and Life, and Geographical Summary.