Most of them are self-mockery of Zhejiang University people. In official website, Zhejiang University, the inquiry shows that this school is the third undergraduate school in China, so it is called three books for short, which is also the self-mockery of Zhejiang University students. Zhejiang University, referred to as "Zhejiang University", is located in Hangzhou, Zhejiang Province. It is a comprehensive national key university directly under the Ministry of Education of China.