Two major anthropological works study the roots, structure, and classification of Indian languages.

The languages spoken by the pre-Columbian tribes of North America were many and diverse. Into the regions occupied by these tribes travelers, traders, and missionaries have penetrated in advance of civilization, and civilization itself has marched across the continent at a rapid rate. Under these conditions the languages of the various tribes have received much study. Many extensive works have been published, embracing grammars and dictionaries; but a far greater number of minor vocabularies have been collected and very many have been published. In addition to these, the Bible, in whole or in part, and various religious books and school books, have been translated into Indian tongues to be used for purposes of instruction; and newspapers have been published in the Indian languages. Altogether the literature of these languages and that relating to them are of vast extent.

The languages spoken by the pre-Columbian tribes of North America were many and diverse. Into the regions occupied by these tribes, travelers, traders, and missionaries have penetrated in advance of civilization, and civilization itself has marched across the continent at a rapid rate. Under these conditions the languages of the various tribes have received much study. Many extensive works have been published, embracing grammars and dictionaries; but a far greater number of minor vocabularies have been collected and very many have been published. In addition to these, the Bible, in whole or in part, and various religious books and school books, have been translated into Indian tongues to be used for purposes of instruction; and newspapers have been published in the Indian languages. Altogether the literature of these languages and that relating to them are of vast extent.

This comprehensive survey of indigenous languages of the New World introduces students and general readers to the mosaic of American Indian languages and cultures and offers an approach to grasping their subtleties. Authors Silver and Miller demonstrate the complexity and diversity of these languages while dispelling popular misconceptions. Their text reveals the linguistic richness of languages found throughout the Americas, emphasizing those located in the western United States and Mexico while drawing on a wide range of other examples from Canada to the Andes. It introduces readers to such varied aspects of communicating as directionals and counting systems, storytelling, expressive speech, Mexican Kickapoo whistle speech, and Plains sign language. The authors have included the basics of grammar and historical linguistics while emphasizing such issues as speech genres and other sociolinguistic issues and the relation between language and worldview. American Indian Languages: Cultural and Social Contexts is a comprehensive resource that will serve as a text in undergraduate and lower-level graduate courses on Native American languages and provide a useful reference for students of American Indian literature or general linguistics. It also introduces general readers interested in Native Americans to the amazing diversity and richness of indigenous American languages.

Native American languages are spoken from Siberia to Greenland, and from the Arctic to Tierra del Fuego; they include the southernmost language of the world (Yaghan) and some of the northernmost (Eskimoan). Campbell's project is to take stock of what is currently known about the history of Native American languages and in the process examine the state of American Indian historical linguistics, and the success and failure of its various methodologies. There is remarkably little consensus in the field, largely due to the 1987 publication of Language in the Americas by Joseph Greenberg. He claimed to trace a historical relation between all American Indian languages of North and South America, implying that most of the Western Hemisphere was settled by a single wave of immigration from Asia. This has caused intense controversy and Campbell, as a leading scholar in the field, intends this volume to be, in part, a response to Greenberg. Finally, Campbell demonstrates that the historical study of Native American languages has always relied on up-to-date methodology and theoretical assumptions and did not, as is often believed, lag behind the European historical linguistic tradition.