Book excerpt: Interregional Interaction in Ancient Mesoamerica explores the role of interregional interaction in the dynamic sociocultural processes that shaped the pre-Columbian societies of Mesoamerica. Interdisciplinary contributions from leading scholars investigate linguistic exchange and borrowing, scribal practices, settlement patterns, ceramics, iconography, and trade systems, presenting a variety of case studies drawn from multiple spatial, temporal, and cultural contexts within Mesoamerica. Archaeologists have long recognized the crucial role of interregional interaction in the development and cultural dynamics of ancient societies, particularly in terms of the evolution of sociocultural complexity and economic systems. Recent research has further expanded the archaeological, art historical, ethnographic, and epigraphic records in Mesoamerica, permitting a critical reassessment of the complex relationship between interaction and cultural dynamics. This volume builds on and amplifies earlier research to examine sociocultural phenomena—including movement, migration, symbolic exchange, and material interaction—in their role as catalysts for variability in cultural systems. Interregional cultural exchange in pre-Columbian Mesoamerica played a key role in the creation of systems of shared ideologies, the production of regional or “international” artistic and architectural styles, shifting sociopolitical patterns, and changes in cultural practices and meanings. Interregional Interaction in Ancient Mesoamerica highlights, engages with, and provokes questions pertinent to understanding the complex relationship between interaction, sociocultural processes, and cultural innovation and change in the ancient societies and cultural histories of Mesoamerica and will be of interest to archaeologists, linguists, and art historians. Contributors: Philip J. Arnold III, Lourdes Budar, José Luis Punzo Diaz, Gary Feinman, David Freidel, Elizabeth Jiménez Garcia, Guy David Hepp, Kerry M. Hull, Timothy J. Knab, Charles L. F. Knight, Blanca E. Maldonado, Joyce Marcus, Jesper Nielsen, John M. D. Pohl, Iván Rivera, D. Bryan Schaeffer, Niklas Schulze