William Lindesay lived in Xi'an for four years, during which time he visited the mausoleum of Qin Shihuangdi on 15 occasions. His previous books include Alone on the Great Wall, The Terracotta Army of the First Emperor of China, and The
Great Wall. He currently lives in Beijing.
Guo Baofu is director of the Preservation and Conservation Department, Museum of Terracotta Warriors and Horses of Qin Shihuangdi. Guo studied archaeology at Beijing University.