Sorry if this is too vague. I've read many times a writing advice that goes something like, if you're gonna show the point of view of different characters then they should think and narrate in different ways, as no two people in real life think exactly the same. I'm assuming this doesn't just mean the opinion and ideologies of the characters, but their way of talking and thinking, the things they notice or don't, how poetically they express themselves. I think I get it in theory but I'd like to read some books that exemplify this to see it in practice.
by vnfangirl