The Three-Body Problem is a science fiction novel written by Liu Cixin. It explores the theme of alien diplomatic relations through a complex and thought-provoking narrative. The story follows a group of scientists who discover that Earth is being invaded by an alien civilization from the Trisolar System. As humanity grapples with the implications of this revelation, the book delves into the challenges of communication and understanding between two vastly different species. With its intricate plot and richly developed characters, The Three-Body Problem has become a bestseller on Amazon, captivating readers with its exploration of alien diplomacy and the consequences of first contact.