The Last Language on Earth is the story of Eskayan, a constructed language from the Philippines. Unlike better-known invented languages such as Esperanto or Klingon, Eskayan has now been transmitted from generation to generation within its community for over a century and has come to be regarded by its speakers as the true indigenous language of the island of Bohol. The book considers the form of language itself as a point of departure, and analyzes the historical circumstances and ideological motivations that brought it into being and which continue to sustain it today.