Guillermo Ramón Celis (Mexico City, MEX, 1986) is a Ph.D. candidate in Anthropology at Indiana University Bloomington. His research interests focus on the people dwelling in the Central Valleys of Oaxaca and the Isthmus of Tehuantepec from prehispanic to contemporary times. He is working to understand the different connections, identities, and economic networks between these two regions. In addition, using remote sensing technologies such as LiDAR and aerial photogrammetry, Guillermo is interested in analysing the aspects of human migratory processes and Zapotec colonialism in the Isthmus of Tehuantepec by creating a map of the Zapotec city and archaeological site, Guiengola. His writing appears in edited volumes published by INAH and UNESCO, among other venues.