The Three-Body World Guide is compiled completely in accordance with the text content and worldview of the original Three-Body Problem trilogy. Based on the in-depth analysis of the plots and core settings of the Three-Body Problem, it reconstructs the magnificent fantasy world of the original work from a brand-new perspective. Narrated in an encyclopedic manner, it guides readers into the Three-Body world and helps them to have a deep understanding of the original work. It consists of three parts. The first one is about the characters, including the main characters and supporting ones as well as their relationship. The second part offers the background knowledge of The Three-Body Problem trilogy, concerning the main events, factions, science fiction concepts, and so on. Reading the third part, readers soak themselves into the interesting three-body games and other unusual experiences. In addition to the text, the book also feasts the readers’ eyes with delicate illustrations of the main characters and important scenes.