
A girl chooses books during the 87th Portugal's book fair in Lisbon, Portugal, June 7, 2017. The fair, which kicked off on June 1, will last until June 18 with an investment of 900,000 euros (about 1 million U.S. dollars). (Xinhua/Zhang Liyun)

A girl chooses books during the 87th Portugal's book fair in Lisbon, Portugal, June 7, 2017. The fair, which kicked off on June 1, will last until June 18 with an investment of 900,000 euros (about 1 million U.S. dollars). (Xinhua/Zhang Liyun)