Xu Guangji (R), a famous archaeologist and chief compiler of The Complete Collection of Murals Unearthed in China, introduces the book during a launching ceremony in Beijing, capital of China, March 16, 2012. The book, compiled by a 230-strong team since 2007, contains 10 volumes, collecting murals of various historical periods unearthed in various parts of China. [Photo/Xinhua]