Yes, ‘The Stranger’ and ‘The Outsider’ refer to the same book. The novel was originally written in French by Albert Camus and titled ‘L’Étranger.’ When it was translated into English, it was published under two different titles: ‘The Stranger’ in the United States and ‘The Outsider’ in the United Kingdom.
The story follows Meursault, a French Algerian who becomes emotionally detached after the death of his mother. The novel explores themes of existentialism, absurdism, and the human condition. Despite the different titles, the content of the book remains the same in both versions.