2. Animal Encyclopedia: This is a set of popular science picture books introducing various animals. Rich in content and illustrated, it is very suitable for children to read.
3. The Secret of the Earth: This is a popular science picture book about the Earth. Through exquisite illustrations and simple words, children can understand the structure and natural environment of the earth.
4. Botanical Encyclopedia: This is a set of popular science picture books introducing various plants. Rich in content and illustrated, it is very suitable for children to read.
5. Space exploration: This is a popular science picture book introducing space. Through exquisite illustrations and simple words, children can understand the mystery of space and the magnificence of the universe.
6. Exploring the Human Body: This is a popular science picture book introducing the human body. Through vivid and interesting stories and pictures, children can understand the functions and structures of various organs of the human body.
7. Animal Behavior: This is a popular science picture book introducing animal behavior. Through vivid and interesting stories and pictures, children can understand the behavior habits and social structure of animals.