An artist demonstrates the art of New Year painting, a traditional Chinese folk painting commonly displayed during Spring Festival celebrations, at the Chinese Classics and Intangible Cultural Heritage Exhibition at the National Library in Beijing, June 8, 2011. Historical documents recording over 200 types of Chinese intangible cultural heritage items are on display. [Photo/Xinhua]

A staff member at the National Library shows the process of repairing ancient Chinese books at the Chinese Classics and Intangible Cultural Heritage Exhibition in Beijing, June 8, 2011. [Photo/Xinhua]