Only students or teachers in our school can enter with student ID cards and teacher ID cards. Sun Yat-sen University is the highest institution of learning in South China and a national key comprehensive research university. Sun Yat-sen University was founded in 1924, formerly known as the National Guangdong University, and integrated Guangdong Normal University for Dr. Sun Yat-sen. Only students or teachers of Sun Yat-sen University in Zhuhai can enter the library with their student ID cards and teacher ID cards, and others are not open unless they know that students from Zhuhai Campus have entered with their student ID cards. A library is an institution that collects, sorts out and collects books and materials for people to read and refer to. As early as 3000 BC, libraries appeared. Library has the functions of preserving human cultural heritage, developing information resources and participating in social education.