"Sink or Swim" centers around Harry Raymond, a young and ambitious boy facing significant challenges. Harry starts off in difficult circumstances, and the novel tracks his journey as he works to improve his life despite the many obstacles in his way.The title reflects the central theme of the novel: Harry must rely on his determination and resourcefulness to "sink or swim" in the face of adversity. Throughout the story, Harry encounters various trials, including financial difficulties, moral dilemmas, and social barriers. His resolve and commitment to doing the right thing help him navigate these challenges.