This document summarizes different models that have been used to analyze Japanese society and culture. It discusses the group model which views Japan as homogeneous and consensus-driven. It then introduces the multicultural model which sees Japan as heterogeneous with many subcultures. It also notes how analyses of Japan have changed over time from seeing it as unique to being more critical. The document also discusses debates around convergence theory and cultural imperialism in sociology. Finally, it emphasizes the complexity of Japanese society and importance of understanding both overt and covert aspects using concepts like "double codes."