Books about endangered languages

The authors show us the problematics of languages extinction that goes faster nowadays. They analyze this process from the point of view of language history and language spreading. They also explain the concept of linguistic biodiversity, as linguistic diversity occupies the same geographic, economic and social territories as biodiversity. Each language dying makes disappear a specific vision of the world as it gathers in its vocabulary all the field experience of the people who speak it. Where western technical vocabulary is only a nomenclature which is always behind species extinction to create new names, oceanian languages name fishes according to the type of hook used to catch them. With such living examples, they show us the true value of the ecology of languages.