Judith Olsak-Glass writes that Piotrowski's premise in "Poland's Holocaust" is that Poland's borders and sizable minorities were the main factors leading to the Holocaust in Poland. Piotrowski posits that the aspirations of Ukrainians for a "greater Ukraine", Belorussians for a "reunited Belarus", and Jews for a "Jewish state within the Polish one" were a smoldering issue in the Second Polish Republic. Piotrowski argues that at the outbreak of the war "radical members" of the minorities sided with the Nazis and Soviets. Piotrowski greatly widens the generally accepted bounds of the Holocaust so that it includes not only Jews but all Polish victims of Nazis and Soviets. The book is organized by collaboration of each ethnic group, blaming those who "colluded with the enemy to the detriment of the Polish state and the Polish people". Olsak-Glass sees the chapter on Jewish collaboration as provocative, though important, writing that while Piotrowski acknowledges some antisemitism in Poland he questions its extent and causes stating that some of the responsibility for antisemitism "must surely rest on the shoulders of the Jews themselves". The final chapter examines the Massacres of Poles in Volhynia and Eastern Galicia, is based on recent scholarship as well as a personal recollection, and details savage barbarity that is not available in other English language books. Overall, Olsak-Glass considers the volume to be a valuable contribution to the field.