Photo taken on July 14, 2021 shows the books exhibited on the 31st Hong Kong Book Fair in Hong Kong, south China. The 31st Hong Kong Book Fair, which was postponed for a year due to COVID-19, opened here Wednesday when more than 700 exhibitors showcased a wide range of books and literary products. Organized by the Hong Kong Trade Development Council (HKTDC), the largest annual literary event in the financial hub was themed Inspirational and Motivational Reading this year, with a tagline "Reading the World - Inspiring the Mind and Refreshing the Soul". [Photo by Wu Xiaochu/Xinhua]