John Sullivan is professor of Nahuatl language and culture at the Universidad Autónoma de Zacatecas, visiting professor at the Univeristy of Warsaw, director of the Instituto de docencia e investigación etnológica de Zacatecas (IDIEZ), and director of the Yale Nahuatl Language Summer Program. He has a degree in elementary education from the Escuela Normal „Manuel Ávila Camacho” in Zacatecas, México, a Ph.D. in Literature from the University of California San Diego and was a Guggenheim fellow in 2007. He and other indigenous researchers at IDIEZ have just published Tlahtolxitlauhcayotl. Chicontepec, Veracruz, a monolingual dictionary of Modern Huastecan Nahuatl. He is currently participating in the projects Europe and America in contact: a multidisciplinary study of cross-cultural transfer in the New World across time (financed by the European Research Council) and Engaged Humanities (Twinning Program). His work consists in training and involving Mexican college students who are native speakers of Nahuatl in teaching, research and revitalization activities.