Witcher trilogy and the books are amazingly diverse. You have humans, elves, gnomes, dwarfes, godlings, dryads, intelligent dragons.. And both deal with racism very well, through this allegory, even if they do not feature different human ethnicities and skin colors (until HoS). Why? Because they are made by Poles, and Poland was a country stuck behind iron curtain that also happens to be nearly completely homogenous and Poles do not have a guilty conscience over african slavery to feel the need to include africans (or asians, or eskymos). "Write what you know". Of course, now that they know some americans will call them racist because of it, I am sure they learned that lesson.