1, visual journey: magical chemical elements. This is a popular science book introducing chemical elements, which describes the peculiar appearance, properties and uses of 1 18 chemical elements with gorgeous illustrations and vivid words. The author introduces each element in detail, including their atomic structure, existing forms in nature, industrial and laboratory uses, etc.

2. A brief history of everything. This is a popular science book introducing the history of natural science, covering the fields of physics, chemistry, biology, earth science and so on from BIGBANG to mankind. The author briefly introduces complex scientific principles and historical events to readers with easy-to-understand language and vivid metaphors.

3. The mystery of life. This is a popular science book introducing biology and medicine, covering all aspects of life from cells to biosphere. The author uses vivid illustrations and detailed words to describe various biological processes and structures in life, including metabolism, genes, immune system and so on.

The definition of popular science books is as follows:

1. understandability: popular science books should use easy-to-understand language, avoid using technical terms and complex theories, and ensure that non-professional readers can understand the content.

2. Popularization: Popular science books make abstract scientific concepts more concrete and vivid by telling stories, rich examples and vivid illustrations, and arouse readers' interests and hobbies.

3. Accuracy: popular science books are still based on scientific authenticity, ensuring the accuracy of the content, and referring to professional scientific documents and research results.

4. Broad topics: Popular science books can cover a wide range of scientific fields, including but not limited to physics, chemistry, biology, astronomy, earth science, psychology, medicine, etc.

5. Readability: Popular science books usually adopt a concise and lively style, with clear structure and clear chapters, which is convenient for readers to acquire and absorb knowledge.