Her second book, "The Rape of Nanking: The Forgotten Holocaust of World War II" (1997), was published on the 60th anniversary of the Nanking Massacre and was motivated in part by her own grandparents' stories about their escape from the massacre. It documents atrocities committed against Chinese by forces of the Imperial Japanese Army during the Second Sino-Japanese War, and includes interviews with victims. "The Rape of Nanking" remained on the "New York Times" Bestseller list for 10 weeks. Based on the book, an American documentary film, "Nanking", was released in 2007.