This book is a comprehensive grammatical description of Araona, a Tacanan language spoken by about 140 people in the Amazonian rain forest of northwestern Bolivia. Araona belongs to the Tacanan language family, a small family that today comprises of no more than five languages. This book is primarily based on first hand data collected in the Araona-speaking communities, during three field trips of a total of 16 months. Cast in the typological-functional framework, and predominantly based on natural discourse data, the grammar presents a detailed account of many aspects of the language. The grammar will be of interest to typologists as it has features shared by languages around the globe including relational nouns, singular-dual-plural number distinctions, suffixes expressing associated motion and posture. The grammar will be useful for historical linguists, especially those interested in the genetic relationships of the Tacanan languages among themselves as well ass with other language families