Wang Jiao (王角)
Wang Jiao (1937) is from Beijing. He is currently attached to the Jilin Art Academy.
The poster 'Resolutely expose and criticize the 'Gang of Four's' crimes of surpressing the movie 'The Builders' and negating the red banner of Daqing' 
, which was published in 1977 after the downfall of the Gang of Four, was designed by Wang in collaboration with Gu Po and Lin Kai.
Sources:
Zhongguo meishuguan (ed.), 中国美术年鉴 1949-1989 (Guilin: Guangxi meishu chubanshe, 1993)
