Jonathan Fineberg is Edward William and Jane Marr Gutgsell Professor of Art History Emeritus at the University of Illinois, Urbana-Champaign. He is the author of more than a dozen award-winning books and catalogues on modern art including Art Since 1940: Strategies of Being, now in its third English and first Chinese edition. He has contributed to several exhibition catalogues for Pace Gallery on Zhang Xiaogang. Gary G Xu is Associate Professor and Head of the Department of East Asian Languages & Cultures at the University of Illinois, Urbana- Champaign and translator of Zhang Xiaogang's complete letters.