Tan Zekai (1889-1948) was born in Chaling, Hunan. Modern calligrapher. His courtesy name is Zutong, his name is Pingzhai, and his family name is Tiansuige. He is the younger brother of Tan Yankai. He was good at calligraphy and practiced regular script. He studied under Weng Tonghe, He Shaoji and Qian Feng, and traced back to Yan Zhenqing. The spirit is majestic and strong, the strength is strong, and the book is good. Take Fa Yan Zhenqing, who also works as a Han Li. He is also good at poetry and painting. The plaque of "National Government" in Nanjing during the Republic of China was written by him. The mastheads of the two Wen Wei Po newspapers in Shanghai and Hong Kong were written by him and are still in use today. Among the elders of the Kuomintang, Tan Yankai's Xingcao, Yu Youren's Jincao, Hu Hanmin's Hanli, and Wu Zhihui's ancient seal scripts are known as the "Four Treasures".