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Elizabeth Hill Boone -LRB- born September 6 , 1948 -RRB- is an American art historian , ethnohistorian and academic , specialising in the study of Latin American art and in particular the early colonial and pre-Columbian art , iconography and pictoral codices associated with the Mixtec , Aztec and other Mesoamerican cultures in the central Mexican region .. American. United States. art historian. art historian. Aztec. Aztec civilization. codices. Aztec codices. ethnohistorian. ethnohistorian. Latin American art. Latin American art. pre-Columbian art. pre-Columbian art. pictoral codices. Mesoamerican codices. Mixtec. Mixtec codices. Her extensive published research covers investigations into the nature of Aztec writing , the symbolism and structure of Aztec art and iconography and the interpretation of Mixtec and Aztec codices .. Aztec. Aztec civilization. codices. Aztec codices. writing. Aztec writing. Mixtec. Mixtec codices. Aztec writing. Aztec writing. Aztec art. Aztec art. Aztec codices. Aztec codices. Boone has been a professor of art history at Tulane University since 1994 -- 95 , holding the Martha and Donald Robertson Chair in Latin American Art .. American. United States. Tulane University. Tulane University. She is also a research associate at Tulane 's Middle American Research Institute -LRB- MARI -RRB- .. American. United States. Middle American Research Institute. Middle American Research Institute. From 2006 Boone took a sabbatical from lecturing and research at Tulane , to accept a position to pursue independent research as the Andrew W. Mellon Professor at the National Gallery of Art 's Center for Advanced Study in the Visual Arts -LRB- CASVA -RRB- , an appointment lasting through 2008 .. sabbatical. sabbatical. National Gallery of Art. National Gallery of Art. Boone had previously been a Paul Mellon Senior Fellow at CASVA , in 1993 -- 94 .