In Navajo, numerous prefixes combine with verb roots to form single words that, in English translation, require a phrase or even a sentence to convey their meaning. Therefore, verb stems and prefixes must be mastered piece by piece to understand the language. This volume leads the reader carefully and systematically through the complexities of the Navajo verb system. By doing so, the book makes Navajo more accessible to all those interested in the American Indian language with the largest number of speakers in the United States.