? Former basketball star Yao Ming attends a ceremony to promote the “Screen-off for One Hour” initiative at the north division of the Shenzhen Library in Longhua District yesterday, the 30th World Book Day and the 10th Shenzhen Minors’ Book Reading Day. Launched by Shenzhen, the initiative encourages residents to put away their mobile phones for one hour every day and spend that time reading paper books or engaging in outdoor exercise. P2, 3 >Liu Xudong | 