" Book " was a type of literary genre, usually referring to novels, essays, poems, and other literary works. Compared with other literary works, it had the following characteristics: 1. Strong storyline: novels and other literary works usually have complicated plots that require the reader to invest enough energy and time to understand. 2. Rich character images: The characters in novels and other literary works have distinct personality characteristics and profound psychological descriptions. The readers need to imagine their images and personality characteristics through imagination. 3. Elegant language: The language of novels and other literary works has a unique charm, which requires the use of rich metaphor, symbolism, metaphor and other rhetorical devices to enhance the expressiveness and appeal of the language. 4. Well-structured: novels and other literary works usually have complex structures that require the author to carefully design the plot and character relationships to achieve fascinating and ups and downs. 5. Profound thoughts: novels and other literary works usually have a certain degree of ideology and content. The author needs to reveal the essence of social reality and human psychology through deep thinking and analysis to guide the readers to think and understand. A book is a literary genre full of imagination and creativity. It guides readers into a world full of artistic and philosophical meanings through rich storylines, characters, language, and structure.