The study of secondary centres is crucial to understanding how a state functions, as they are important points of interaction between state authorities and ordinary households. In this work the author focuses on the nature of the political organization of the lower-level centres of the Early Classic Period (A.D. 200- 500) in the Mixteca Alta, Oaxaca, Mexico. A previous comparative analysis of architectural arrangements at secondary centers between the Valley of Oaxaca and the Mixteca Alta indicated that single plaza groups were the major form of public architecture. The author interprets...