Cheng Zhenqing's Book of Changes is credible. Cheng Zhenqing,1born on October 9, 1952, 165438, Han nationality, Zunhua, Hebei, associate professor, School of Economics and Management, Northwest Normal University, master's degree. 20 1 1 Northwest Normal University retired. According to him, he will give lectures in Shandong, Beijing, Hunan and other places, focusing on the Book of Changes and Feng Shui. It is credible to be hired as a visiting professor by the president classes of Peking University, Tsinghua and China University of Science and Technology.