Whose font is used in Shanghai Calligraphy and Painting Publishing House’s commonly used copybooks?

I guess you are asking about the first edition of commonly used calligraphy copybooks in 1978 (pocket version 1990), which includes regular script, official script, running script, cursive script, seal script, and traditional Chinese. Search "common characters" on Taobao and Jingdong. Copybook Shanghai Painting and Calligraphy".

The writers are everyone! Regular script: Weng Kaiyun, official script: Shan Xiaotian, running script: Hu Wensui, cursive script: Xu Boqing, seal script: Fang Quji, traditional script: Wu Jianxian