Fairy tales were a special genre of literature that usually had the following important characteristics: 1. Fantasy: Fairy tales usually involve fantasy and surreal topics such as magic, giants, elves, fairies, etc. These elements often constitute children's wonderful imagination of the world. 2. Exaggeration: The characters and plots in fairy tales are often exaggerated and distorted to show an exaggerated, humorous, or ironic style. This kind of exaggeration can make the story more lively and interesting, and also help to attract the reader's attention. Dreams: Fairy tales usually involve children's dreams and wishes. These dreams and wishes can be about learning, family, friendship, love, and so on. These topics can help children express their feelings and thoughts, and also help guide them to grow up positively. 4. The theme: Fairy tales usually involve some profound topics such as love, friendship, justice, courage, kindness, responsibility, etc. These topics can help children learn some important values and moral principles, and also help them grow into mature individuals with thoughts and emotions. 5. Language: The language of fairy tales is usually imaginative and expressive. They use many figurative, metaphor, symbolism and other rhetorical devices. These devices can help the story become more vivid and interesting, and also help the readers better understand and feel the emotions and thoughts in the story.