The A to Z of Ancient Mesoamerica covers some of the major discoveries throughout ancient Mesoamerica from the last 100 years. The results of previous and continuing research and explorations, plus recent interpretations of ancient cultures and new work at archaeological sites in Mesoamerica are summarized here. Included in this volume are information and insights on archaeological sites, material culture, social and economic organization, religion and belief systems, and the social history of ancient Mesoamerica. The entries contain geographical, chronological, historical, and interpretive data that serve as a condensed and accessible resource of reference material.