A woman pushing a stroller chooses children's book at the Bookfest, an international book fair, at Romexpo in Bucharest, Romania, June 1, 2019. (Xinhua/Lin Huifen)

People read and choose books at the Bookfest, an international book fair, at Romexpo in Bucharest, Romania, June 1, 2019. (Xinhua/Lin Huifen)

People read and choose books at the Bookfest, an international book fair, at Romexpo in Bucharest, Romania, June 1, 2019. (Xinhua/Lin Huifen)