Guests watch exhibits as they attend the press conference of an exhibition on the calligraphy and painting of Su Shi at the Palace Museum in Beijng, capital of China, Aug. 31, 2020. An exhibition on the calligraphy and painting of Su Shi (also known as Su Dongpo), a famous litterateur of the Northern Song Dynasty (960-1127), will be held here from Sept. 1 to Oct. 30. (Xinhua/Jin Liangkuai)