Professor Li Qiang was once the chair of the Department of Sociology. Now Professor Li is the Dean of the School of Social Sciences, Vice President of Chinese Sociological Association, Advisor to the Committee on Social Sciences of the Ministry of Education, the National Committee on Information, the Ministry of Civil Affairs, the Ministry of Health, and the Beijing Municipal Government. Professor Li has published Ten Lectures on Social Stratification (2008), Migrant Workers and Social Stratification (2004), China’s Social Stratification and Mobility in Transition Period (2002), Social Stratification and Wealth Gap (2000), Social Stratification and Mobility in Contemporary China (1993), Wealth Gap in Mainland China (1989) among more than 10 books. He has also written more than 150 academic articles. He has been awarded various research medals before coming to Tsinghua and becoming the founding chair of the new Tsinghua Sociology Department. Professor Li had worked from 1985 to 1999 as Professor and Ph.D. advisor, and he later served as the Chair in the Department of Sociology at Renmin University of China. Professor Li also taught as the visiting professor at University of Chicago and Stanford University. 【Areas of Research Interests/ Research Projects】Social stratification and mobility; Urban sociology; Applied sociology; Social structure and social issues