Ma Lingzhong (R) and Wang Qingxia (L) prepare bark for papermaking at a museum in Yangxian county, Northwest China's Shaanxi province, Oct 27, 2010. The 73-year-old man and 60-year-old woman are among the few people who have the knowledge of the whole process of China's ancient art of papermaking, pioneered by Cai Lun, a craftsman of the Eastern Han Dynasty (AD 25-220). They learned the skills from their families and now work in a museum near Cai Lun's tomb in Longting town of Yangxian county to show visitors the ancient art. [Photo/Xinhua]