Martha J. Macri is Professor Emerita of Native American Studies and Research Professor in Linguistics at the University of California, Davis. She is a co-principal investigator for the Maya Hieroglyphic Database project funded by the National Science Foundation and the National Endowment for the Humanities.Gabrielle Vail is a Research Scholar in the Division of Social Sciences at New College of Florida in Sarasota. She has specialized in studies of the Maya codices for over twenty years and is coeditor of The Madrid Codex: New Approaches to Understanding an Ancient Maya Manuscript.

Martha J. Macri is Professor Emerita of Native American Studies and Research Professor in Linguistics at the University of California, Davis. She is a co-principal investigator for the Maya Hieroglyphic Database project funded by the National Science Foundation and the National Endowment for the Humanities.Gabrielle Vail is a Research Scholar in the Division of Social Sciences at New College of Florida in Sarasota. She has specialized in studies of the Maya codices for over twenty years and is coeditor of The Madrid Codex: New Approaches to Understanding an Ancient Maya Manuscript.

Martha J. Macri is Professor Emerita of Native American Studies and Research Professor in Linguistics at the University of California, Davis. She is a co-principal investigator for the Maya Hieroglyphic Database project funded by the National Science Foundation and the National Endowment for the Humanities.Gabrielle Vail is a Research Scholar in the Division of Social Sciences at New College of Florida in Sarasota. She has specialized in studies of the Maya codices for over twenty years and is coeditor of The Madrid Codex: New Approaches to Understanding an Ancient Maya Manuscript.