This entry surveys Social Representations Theory as a foundational framework for understanding how socially shared meanings organize knowledge, identity, and action. It outlines the theory’s core assumptions, including the co-constructive relation between individual and social processes, the representational functions of anchoring and objectification, and the distinction between hegemonic, emancipated, and polemical representations. The chapter situates social representations historically within European social psychology and highlights its emergence as a response to positivism, individualism, and theoretical fragmentation. Key debates concerning vagueness, consensus, agency, and epistemology are critically reviewed, with particular attention to dialogical developments that clarify the relational nature of meaning making. Finally, the entry considers contemporary possibilities, including policy engagement and the challenges posed by generative artificial intelligence, to argue that Social Representations remain an adaptable framework for analyzing social knowledge in changing communicative landscapes.