In addition to the lyricism and beauty of Conrad's descriptive writing, the novel is remarkable for its sophisticated structure. The bulk of the novel is told in the form of a story recited by the character Marlow to a group of listeners, and the conclusion is presented in the form of a letter from Marlow. Within Marlow's narration, other characters also tell their own stories in nested dialogue. Thus, events in the novel are described from several viewpoints, and often out of chronological order.