"Dictionnaire François—Onontagué" is a publication that is a real treasure for anyone interested in the history, culture, and language of the Indian tribes of North America. The author John Gilmary Shea studied the language and customs of the Indians and reflected his research in this book. "Dictionnaire François—Onontagué" contains an extensive dictionary of the French language and the language of the Onontagu Indian tribe, which allows readers to immerse themselves in the authentic atmosphere of the life and communication of the Indians with the colonists. This book is not only useful from the point of view of linguistics, but also a valuable resource for studying the cultural heritage of the Indian people.