People read books at 2018 Shanghai Book Fair in Shanghai, east China, Aug. 15, 2018. A total of 150,000 kinds of books were displayed and more than 500 publishers participated in the seven-day book fair which kicked off on Wednesday. (Xinhua/Xu Xiaoxuan)

A child reads a book at 2018 Shanghai Book Fair in Shanghai, east China, Aug. 15, 2018. A total of 150,000 kinds of books were displayed and more than 500 publishers participated in the seven-day book fair which kicked off on Wednesday. (Xinhua/Liu Ying)

People read books at 2018 Shanghai Book Fair in Shanghai, east China, Aug. 15, 2018. A total of 150,000 kinds of books were displayed and more than 500 publishers participated in the seven-day book fair which kicked off on Wednesday. (Xinhua/Liu Ying)

Children read books at 2018 Shanghai Book Fair in Shanghai, east China, Aug. 15, 2018. A total of 150,000 kinds of books were displayed and more than 500 publishers participated in the seven-day book fair which kicked off on Wednesday. (Xinhua/Liu Ying)

People select books at 2018 Shanghai Book Fair in Shanghai, east China, Aug. 15, 2018. A total of 150,000 kinds of books were displayed and more than 500 publishers participated in the seven-day book fair which kicked off on Wednesday. (Xinhua/Ren Long)

An elder reader selects books at 2018 Shanghai Book Fair in Shanghai, east China, Aug. 15, 2018. A total of 150,000 kinds of books were displayed and more than 500 publishers participated in the seven-day book fair which kicked off on Wednesday. (Xinhua/Xu Xiaoxuan)

People select books at 2018 Shanghai Book Fair in Shanghai, east China, Aug. 15, 2018. A total of 150,000 kinds of books were displayed and more than 500 publishers participated in the seven-day book fair which kicked off on Wednesday. (Xinhua/Ren Long)

People attend a press conference for new books at 2018 Shanghai Book Fair in Shanghai, east China, Aug. 15, 2018. A total of 150,000 kinds of books were displayed and more than 500 publishers participated in the seven-day book fair which kicked off on Wednesday. (Xinhua/Liu Ying)

People select books at 2018 Shanghai Book Fair in Shanghai, east China, Aug. 15, 2018. A total of 150,000 kinds of books were displayed and more than 500 publishers participated in the seven-day book fair which kicked off on Wednesday. (Xinhua/Xu Xiaoxuan)