1983 graduated from Peking University Library Department (now Information Management Department), and later studied under Mr. Zhang Shunhui from the Institute of Historical Literature of Central China Normal University, and obtained a doctorate in history. /Professor KLOC-0/993, 1995, Associate Dean of School of Library and Information Science, Wuhan University, 1996, Doctoral Supervisor. He is currently a professor and head of the Department of Information Management in Peking University. At the same time, he is also the director of the Teaching Steering Committee of Library Science in Colleges and Universities of the Ministry of Education, the vice chairman of library society of china, and the member of the National Expert Committee for the Protection of Ancient Books.
The professional research fields are philology, reading culture and modern publishing industry research.