Robert Lloyd Williams has studied the Mixtec codices since the 1980s and taught courses on them in the Mixtec Codex Workshop, which he cofounded with John M. D. Pohl, for twelve years. He is presently Adjunct Professor of Anthropology at Texas State University–San Marcos. His first book was Lord Eight Wind of Suchixtlan and the Heroes of Ancient Oaxaca: Reading History in the Codex Zouche-Nuttall.