Introduction to Jiang Qian's Theft of Books: Jiang Qian's Theft of Books occurred on the eve of the Three Kingdoms Chibi War. Cao Cao personally led a million troops and stationed on the north bank of the Yangtze River, intending to cross the Yangtze River and go straight to Soochow. Zhou Yu, the governor of Eastern Wu, also led troops to confront Cao Jun across the river, and the two sides were at war with each other. Jiang Qian, a counselor under Cao Cao, recommended himself to Cao Cao because he had studied with Zhou Yu since he was a child. He wanted to cross the river to Soochow to work as a lobbyist to persuade Zhou Yu to surrender. As a result, Zhou Yu devised a plan and ordered Jiang Qian to steal the surrender letter written by Cao Cao's naval commanders Cai Mao and Zhang Yun to Zhou Yu. Jiang Qian presented a letter to Cao Cao and ordered Cai Mao and Zhang Yun to be executed. Later, Jiang Qian's stealing of books was used as a metaphor for falling into someone else's conspiracy.