"Monster" is an exciting novel written by the famous American writer Walter Dean. The book tells the story of a sixteen-year-old boy named Stephen, who is on trial for murder. Through the powerful internal monologue of the main character, the reader feels his doubts, struggle with his own conscience, as well as despair before the inevitable sentence. The author sharply conveys the hero's experiences and internal struggle through the power of language and internal dialogue, which reveal to the reader the depth of the soul and the complexities of moral choice. Will Steven be able to prove his innocence in this ruthless reality where he is already known as a monster? Revealing questions of guilt, innocence and justice, the book "Monster" leaves the reader with deep moral reflections and impressions that remain with him long after the last page.