This book is a small encyclopedia of media environmental school of communication. Editor Professor Lin Wen-gang is the founding vice president of the Media Environment Society. He invited 12 famous scholars active in the frontier of media environment to write their own articles and comment on Mumford, Innis, McLuhan, Bosman, Eisenstein and other academic giants. The editor has written a long "Introduction" of more than 40,000 words, describing the historical evolution of media environmental science, elaborating the theoretical construction of this field, and looking forward to the development prospect of this discipline. The perspectives are diverse, the levels are rich, and the analysis is profound. Twelve contributors with their respective strengths introduce more than ten representatives of this school in a biographical way, which makes this book with lofty ideas, rich content and wonderful content.