During the Mississippian period (A.D. 1000-1500) the southeastern United States witnessed a broadscale fluorescence of polities characterized by impressive earthwork construction, rich mortuary offerings, and intensified agriculture. Research on the nature of complexity in these so-called chiefdoms has been an enduring issue in North American archaeology, even as this research has undergone several paradigmatic shifts. This study focuses on the primary dimensions of the archaeological record used to describe and explain variation in Mississippian complexitypolity scale, settlement and landscape, the organization of labor, mortuary ritual and ideology, and tribute and feasting. Changing perspectives toward the organization of complexity and power have become increasingly pronounced in each of these categories. 65 the 1970s onward in part because it was a theoretically compelling view and in part because several of those archaeologists-as well as a subsequent generation of influential archaeologists from Michigan-work in the Mississippian Southeast. Today when archaeologists refer to Mississippian complexity, they usually refer to the political aspects of these chiefdoms. Yet this is a tacit understanding, and, with few exceptions (e.g., Emerson & Pauketat 2002, Saitta 1994, Schroeder 2003), there has been little explicit discussion in Mississippian circles about the precise meaning of complexity. Variation in complexity is commonly described by subcategories of chiefdoms based on the relative degree of inferred political and economic power. To that end, the most commonly applied terms are "simple," "complex," and "paramount" chiefdoms. It would overstate the case, nevertheless, to argue that considerations of Mississippian complexity are merely exercises in pigeonholing. Lurking behind these categories there is a deeper, implicit interest in the exercise of power and authority. "Complexity" serves as a gloss for these types of relations. Hence, discussions about complexity now tend to be phrased in terms of the political economy, and political economy is commonly tied to the issue of power. Using political economy as a point of departure, one can discern two trends in research on Mississippian complexity. First, the notion of political economy has expanded from a materialist basis to one that incorporates considerations of ideology, or what some refer to as political culture (Pauketat 1997, Rees 2002). Second, vertical conceptions of power focused on elites have broadened to consider both horizontal characteristics of the political economy (or heterarchy, following Crumley 1987) and the actions of commoners in terms of agency and resistance. These trends can be attributed to the realization that power is not solely a structural feature of chiefdoms that can be expressed as incremental forms of domination. Power also has an experiential quality; it is something that is acted out, reproduced, contested, and transformed in the daily interactions of actors. It is not easy to parse advocates cleanly into one approach t...