Missionary Linguistic Studies from Mesoamerica to Patagonia presents the results of in-depth studies of grammars, vocabularies and religious texts, dating from the sixteenth – nineteenth century. The researches involve twenty (extinct) indigenous Mesoamerican and South American languages: Matlatzinca, Mixtec, Nahuatl, Purépecha, Zapotec (Mexico); K’iche, Kaqchikel (Guatemala); Amage, Aymara, Cholón, Huarpe, Kunza, Mochica, Mapudungun, Proto-Tacanan, Pukina, Quechua, Uru-Chipaya (Peru); Tehuelche (Patagonia); (Tupi-)Guarani (Brazil, Paraguay, Uruguay).

The results of the studies include: a) a digital model of a good, conveniently arranged vocabulary, applicable to all indigenous Amerindian languages; b) disclosure of intertextual relationships, language contacts, circulation of knowledge; c) insights in grammatical structures; d) phone analyses; e) transcriptions, so that the texts remain accessible for further research. f) the architecture of grammars; g) conceptual evolutions and innovations in grammaticography.