In The Absolutely True Diary of a Part-Time Indian, compare life on the reservations to life in Reardan
As Junior realises on his first day, Reardan is in every way the opposite of the reservation where he has grown up. As he gets out of his father's car, trembling with nerves, Junior is filled with a sense of his own inferiority. Even though this is clearly not accurate, nevertheless it does indicate the way in which for Junior, going to Reardan was like going to a different country with a different culture and different ways of doing things. Note how the following quote explores the totality of the difference between Reardan and the reservation:
Reardan was the opposite of the rez. It was the opposite of my family. It was the opposite of me. I didn't deserve to go there. I knew it; all of those kids knew it. Indians don't deserve shit.
The cartoon that is alongside this quote shows an average Reardan student alongside an average student from the reservation, and the wealth and luxury that the Reardan student is able to afford, and the hope and the promise of a bright future that they have, is contrasted strongly with the poverty and lack of opportunity that the student from the reservation has.