Published academic works 2 1 Department: China News Perspective: Realistic Motivation and Future Trend of China News Reform (1993), China Public Opinion Research (1993), Evolution Track: China News Communication and News Theory in Social Change (1993). Deconstructing Public Opinion: An Empirical Study by a Public Opinion Scholar (200 1), Analyzing Media Change: A Report from the First Site of China Media Industry (2002), Media Influence: the Essence and Competitive Strategy of Media Industry (2003), Selected Inscriptions of Yu Guo (2004), Changing Media. Methods and Applications (2005), Media Selection at Turning Point (2007), Grammatical Revolution of Media (2007), Research on the Communication Effect and Credibility of China Mass Media (2008), China Media Soft Power Development Report (2009) and New Media Vision. Weibo: Investigation of a new communication form-influence model and social application (20 1 1), China people's media contact: time dimension and spatial interface-quantitative investigation based on the spatio-temporal multidimensional research paradigm (20 12), product placement: operation roadmap-more than 400 academic papers and research reports have been published. From 1979 to the end of 20 10, the number of papers published in the field of news communication was the third in China, and the citation rate was the second in China.