Zhongguancun Book building is one of the largest book store offering all classification of book in Beijing. It has a huge area of 10,000 m2 where gathered 200,000 types of books, videos and electronic publications. One reason this book store attracting so many customers is that customers can get 10-20% off the price for all the books here. The 1st floor mainly sells CD, DVD and other electronic publications, 2nd floor economics and social sicence, 3rd floor education while 4th floor sells novels, Computer science and other science books. Also there are lots of original edition books imported from foreign countries in the 3rd floor which well meets the needs of various customers.