The Three-Body Problem is a critically acclaimed space thriller mystery book written by Liu Cixin. Set against the backdrop of China's Cultural Revolution and the present day, the story follows a group of scientists who discover that Earth is under the threat of an alien invasion. As they unravel the mysteries of a virtual reality game and a secret organization, they must find a way to save humanity from annihilation. The Three-Body Problem combines scientific concepts, philosophical themes, and intricate plotting to create a compelling and thought-provoking reading experience.