"The Boy in the Striped Pyjamas" is a novel by John Boyne that tells the story of a young boy named Bruno, the son of a Nazi officer during World War II. When his family moves to a house near a concentration camp, Bruno feels lonely and curious about the world beyond his home. He eventually meets a boy named Shmuel, who wears striped pajamas and lives on the other side of a fence. The friendship between Bruno and Shmuel develops despite the barriers between them. The story explores themes of innocence, friendship, and the impact of war, ultimately leading to a tragic conclusion that highlights the horrors of the Holocaust.