The photo, taken on December 3, shows a student "swiping" her face on a self-service machine to borrow books at the library of Hunan University. After more than half a month of testing, the library officially launched the "face-swiping" book lending service this month, becoming the first of its kind in the province. (Photo/Tian Chao, Hunan Daily-VOC.com.cn)

Source: en.changsha.gov.cn