There were many differences between the world in the book and the world in real life. The world in a book is usually fictional, created by the author. It can be based on imagination, historical events, cultural traditions, and other factors. Therefore, there were differences between the world in the book and the real world. The specific differences might vary from work to work. The world in a book usually had more detailed descriptions and richer details. The author could describe the character's personality and psychology by describing the character's expression, tone, movements, and other details, so that the reader could have a deeper understanding of the character's inner world. The world in a book is usually constructed by the author's imagination and conception, so there may be some situations that do not conform to reality, such as character attributes, location, technology, etc. This situation might affect the difference between the book world and the real world. In short, there are differences between the world in the book and the real world. The reader needs to carefully distinguish the differences between the two and compare them.