What are the motifs in Five Chimneys: The Story of Auschwitz by Olga Lengyel?

Thw German machine is a motif in this book. Olga's is not the first story to tell of the elaborate steps taken by the Germans to calm the people who would be the victims of the German army or to deceive the world regarding the atrocities of the Germans. One of those is the use of musicians. As the cattle cars arrive and the hundreds disembark, they're calmed by the sounds of an orchestra.