Nanjing University is one of China's key comprehensive universities and it functions directly under the Ministry of Education. It is located in the ancient capital of six dynasties - Nanjing. Today, Nanjing University consists of two campuses, one in Gulou and the other in Pukou with a total area of more than 3,600 mu (nearly 600 acres). It is one of the top universities in China, with beautiful campuses and modern teaching and research facilities. Its current President is Professor Chen Jun, a geochemist. The University celebrates its anniversary on May 20 of each year. In its history of more than 100 years, Nanjing University has cultivated a great number of prominent and learned figures, having thus contributed much to the nation's revitalization and development. Nanjing University provides a good environment for teaching and research. Its library contains over 4.29 million volumes, ranking among the top ones of all the universities in China. There are currently 116 institutes of various types, 87 interdisciplinary research centers and some large teaching, research and experiment facilities such as the Analysis Center, the Network and Information Center, and the Educational Technology Center.