Bakker, J.I. 2023. “Blumer, Weber, Peirce, and the Big Tent of Semiotic Sociology: Notes on Interactionism, Interpretivism, and Semiotics.” Chapter in Fontdevila, Jorge and Andrea Cossu eds, Interpretive Sociology and the Semiotic Imagination. Bristol University Press, 2023. Project MUSE muse.jhu.edu/book/112239. This chapter proposes to refine the symbolic interactionist project by incorporating Peircean semiotics and neo- Weberian interpretation. Symbolic interactionism appears to have forgotten key sources of its American pragmatist roots. Peirce’s indirect influence on Mead and Blumer, for instance, is often undertheorized but should be made central to the foundational narratives of symbolic interactionism. This calls for more sophisticated understandings of meaning- making that incorporate Peirce’s semiotic triadic model and classifications of signs where symbols are just one kind of signs among others. Here, I take on these matters and expand on my pragmatic sociology (Bakker, 2011a) to introduce the emergent project of a semiotic sociology. In stepwise fashion, I lay foundations of a metaparadigmatic synthesis— a “big tent”— based on five key arguments that build upon each other, including Blumer as its anchor point, American symbolic interactionism, global interactionism, neo- Weberian interpretive analysis for cross- historical comparison, and Peircean semiotics as the culminating paradigm that pulls it all together. The Cold War is over (Menand, 2021).