The definition of a good book varies from person to person, but generally speaking, a good book should have the following characteristics: Good content: A good book should contain interesting, enlightening, and valuable content that allows readers to gain new knowledge and insights. 2. Beautiful writing style: A good book's writing style should be beautiful and smooth, allowing the reader to feel the author's literary talent and emotions. 3. The plot is attractive. The plot of a good book should be compact, interesting, and able to resonate with the reader emotionally. 4. Profound Character Depictions: The characters in a good book should be profound and three-dimensional, so that the reader can have a deep impression of each character. The language should be concise and easy to understand. The language of a good book should be concise and easy to understand so that the reader can quickly understand and absorb the content of the book. A good book should be a work that resonates with the readers, gives them new inspiration, and improves their self-cultivation.