Citizens visit the 2018 Nanjing Book Fair in Nanjing, capital of east China's Jiangsu Province, March 22, 2018. Data from National Press and Publication Administration (NPPA) shows that China has seen rapid growth in its publishing industry over the past four decades, with the number of publishing houses increasing from 105 to over 580. Physical bookstores in China have taken the path of integrated development and transformation and upgrading, thanks to favorable policies introduced in recent years. (Xinhua/Sun Can)