Don't sleep, snakes are all around. Life and language of the Amazon jungle

A gripping account of the extraordinary experiences and discoveries made by linguist Daniel Everett while living among the Pirahã, a small tribe of Amazonian Indians in central Brazil. Daniel Everett arrived among the Pirahã with his wife and three young children, hoping to convert the tribe to Christianity. Everett quickly became fascinated with their language and its cultural and linguistic implications. The Pirahã have no counting system, no fixed terms for color, no concept of war, and no personal property. Everett was so impressed by their peaceful way of life that he eventually lost faith in the God he had hoped to introduce to them and instead devoted his life to linguistics.