As a young anthropologist, Kulick went to the tiny village of Gapun in New Guinea to document the death of the native language, Tayap. He arrived knowing that you can't study a language without understanding the daily lives of the people who speak it: how they talk to their children, how they argue, how they gossip, how they joke. Over the course of thirty years, he returned again and again to document Tayap before it disappeared entirely. Here he...