Many authors would write their own life experiences into their characters 'novels to enrich and shape the characters' personalities and experiences so that the readers could understand and feel their stories more deeply. This kind of writing style was called autobiographical novels or recollective novels. For example, in the famous novel, Twain described the protagonist's childhood and youth in his novel, The Adventures of Tom sawyer, including his life experiences during the American colonial period and his conflicts with pirates and Native Americans. These were all Twain's own experiences and observations. There were many other novelists who would also incorporate their own experiences into their works to enrich and shape the character's personality and experience so that the readers could understand and feel their stories more deeply. This way of writing not only increased the depth and content of the novel, but also allowed the readers to better understand and appreciate the author's creation.