Prof. Hong Guo received his Bachelor of Science degree from the Department of Physics, Northwest Normal University in 1984, his Master of History degree from the Department of Cultural Heritage and Museology, Fudan University, and his Doctor of Engineering degree from the Institute of Cultural Heritage and History of Science and Technology, University of Science and Technology, Beijing, in 2005. He is now a professor at the University of Science and Technology, Beijing. He worked at Dunhuang Academy China from 1984 to 1998. He worked as an associate scientist at Northwest University from 1999 to 2004 and as a senior scientist at the Chinese Academy of Cultural Heritage from 2005 to 2017. His research interests are the conservation of cultural relics, especially for the protection and restoration of ancient murals, and the preventive protection of cultural relics, including its environment.