I lived on the rez my whole life. But surprise surprise, I learned much of what I know from books (*gasp)
From these stories you can glean, not just the story itself & intended lessons, but information about how the people lived and thought
I know some people hate that our stories were recorded by mostly white anthropologists. However, realistically, many of the stories have died with the storytellers
It's important to not judge any of these stories or writings with a western European perspective.
This information needs to be taken with a grain of salt.
Who is the author?
Who are they friends with?
Who do they serve?
Who is the intended reader?
What is the purpose of their writing?
Even a very biased settler could have some important observations
Allow your people to be portrayed as a full society of people in your mind--not just the good guys
My journey in learning about my people is life long and neverending. And books and historical writings are an important part of it