In his photographs Xu Yong (*1954, Shanghai, China) deals with questions of Chinese history and identity. For the series «This Face» (2011) he collaborated with Zi U who is also a coauthor of this project.She is a young woman who lived in Beijing as an underground sex worker. Xu Yong accompanied her for a day to take close-up photographs of her face during her breaks between clients. In Planet 9 they are shown for the first time outside of Asia.