1. Expression and application scenario: "Writing" refers to writing, that is, creative writing, including telling, narrating, explaining or discussing to express thoughts or feelings. "Book" is a literary genre, and the author expresses his thoughts or feelings in the form of novels, essays, poems or plays.
2. Meaning and literary form: "writing" refers to writing articles, and "book" here refers to calligraphy, which is an art form. The content of articles is expressed in the form of calligraphy through calligraphy.
Generally speaking, "writing" and "book" are different in expression, application scene, meaning and literary form.