This chapter begins with the difficulties inherent in the concept of culture itself, and also of establishing a clear relationship between culture and social representations. For Serge Moscovici social representations are considered as the form of collective ideation which has appeared in the context of the modern world. Culture is sometimes considered as the discriminating principle through which all members of a community are alike in sharing some set of beliefs, values, and practices, and different from other communities which have their own sets of beliefs, values, and practices. In Moscovici's work, the theory of social representations has always been oriented to the analysis of social, or cultural, change. By emphasizing the dynamic aspect of social groups, and thus also orienting the discussion of representations to the dimension of time, and through the concept of cognitive polyphasia, the theory can help to elucidate central aspects of processes of cultural change.