Answer :
The theme best expressed by both Wiesel and Spiegelman is the American literature of the Holocaust, a tragic misunderstanding, and the submissive obedience of the Jewish people.
Elie wiesel
In Auschwitz, not only man died, but also the idea of man. Living in a world where there is nothing, where the executioner acts as a god, as a judge; many did not want to be part of it. It was his own heart the world incinerated in Auschwitz.
Spiegelman
The misadventures of the Spiegelman family, an American cartoonist of Jewish descent, embodied as mice suffering from the violence of cats, are read with fascination thirty years after its publication.