On the basis of the first 30 episodes of the original radio program, Wu Dong's Theory of Relativity systematically arranges and recreates the sound content. According to the content, it is divided into four sections, retaining the dialogue form of the original radio program to reflect the "relativity" of mutual encouragement, confrontation and discussion between the host and the guests. Each episode is interspersed with background knowledge and noun explanations, and is accompanied by exquisite illustrations. In addition, this book also comes with an MP3 CD, hoping to create a comprehensive reading experience for readers.