He often portrayed the fate of homeless wanderers looking for a place to live, in particular Jews and former citizens of the old Austria-Hungary, who, with the downfall of the monarchy, had lost their only possible Heimat ("true home").
Han portrætterede ofte hjemløse skæbner, der leder efter et sted at bo, især jøder og tidligere borgere i det gamle Østrig-Ungarn, som med monarkiets undergang havde mistet deres hjemstavn.