 According to William C. Kirby , Professor of History at Harvard University , Chang " shows more clearly than any previous account just what [ the Japanese ] did " , and that she " draws connections between the slaughter in Europe and in Asia of millions of innocents during World War II " . Ross Terrill , an associate in research at the Fairbank Center for East Asian Research at Harvard University , wrote that the book is " scholarly , an exciting investigation and a work of passion " . Beatrice S. Bartlett , Emeritus Professor of History at Yale University , wrote , " Iris Chang 's research on the Nanking holocaust yields a new and expanded telling of this World War II atrocity and reflects thorough research . " 
