"A Descriptive Grammar of Nambikuara" in 2001 which was published by The University of Chicago Press. This work includes information on the languages in the Nambikwara family in terms of Grammatical Clauses, Verbs, Nouns, Vowels, Phrases, Syllables, Adjectivals, Consonants, etc. This texts generally explains the grammar on Nambikwara. According to Klein and Stark in the book they edited titled "South American Indian Languages: Retrospect and Prospect", Nambikwara also has phonological descriptions and a pedagogical grammar, as well as paper on the languages’ phonological details. Work on Mamaindê Beginning in the 60s, SIL International (formerly Summer Institute of Linguistics, Inc.) worked among the Mamaindê which could be considered a documentation project of the language. Their documentations on Mamaindê specifically includes the following: Peter Kingston’s unpublished master’s thesis on Mamaindê repetition and other discourse features (Reading University, 1974), Kingston’s "Sufixos referenciais e o elemento nominal na lingua Mamaindê" on verb and noun morphology (published in Serie Linguistica 5:31-81, Brasilia, SIL), David Price’s book "Before the Bulldozer" in which Mamaindê history is covered in one section (1989), Paul Aspelin’s dissertation on Mamaindê food exchange (1979), Dave Eberhard’s published phonology thesis on Mamaindê stress (1995) and his two articles on prosodic features; a paper on Mamaindê nasals (on the Rutgers Optimality Archives website) and a paper on Mamaindê tone (in the proceedings of the Symposium on Andean and Amazonian Languages and Cultures, 2004, Vrije Universitieit, Amsterdam). Other research conducted with the Mamaindê includes Joan Miller’s research beginning in 2002. Miller has a PhD in Social Anthropology (CAPES Concept 7) from the Federal University of Rio de Janeiro, UFRJ, Brazil and has work entitled The Things. Body decorations and the notion of person for the Mamaindê (Nambiquara) 2007. She conducted a research project from 2007 - 2008 called Objectivization and subjectivation regimes in Amazonia: a study of the body adornments of Mamainde (Nambiquara). This project works to include the Mamainde ethnographic analysis in the debate about regimes of objectification and subjectivation in Amazonia and other ethnographic contexts such as Melanesia (Curriculo Lattes). Edilberto Fernandes Syryczyk has a PhD in Science and Mathematics Education, REAMEC - UFMT Program (2016) that reaches along many categories including Indigenous Mathematical Knowledge, Indigenous Ethnomathematics, Indigenous Culture, Ethnology of Nambikwara, Mathematical Knowledge in Mamaindê. He has contributed to an extension project called Arts & Culture Yucotindu that aims to promote the revitalization of the Mamainde culture. The project works to foster