The novel started from the first letter Sophie received so that readers could better understand Sophie's background and story, as well as her environment. Through this letter, readers can understand the country and era Sophie lived in, as well as the challenges and difficulties she faced. Starting from the first letter Sophie received could also set a starting point for the development of the story. Through this letter, Sophie could start to get in touch with the world, understand the people and things around her, and lay the foundation for the subsequent development of the story. The advantage of starting the novel from the first letter Sophie received was that it could attract the reader's interest, guide the reader into the world of the story, and provide the reader with rich background information and plot development.