My son brings those books home from school. He used to bring home biographies about WWE super stars. I told him one day to get something less violent. He brought home B is for battle a book about the civil war. I thought to my self "that's the most violent thing in American history." His name is Lincoln so he was pleased to hear Abraham Lincoln had a big part of it, and was on "the good side." When we got to the part about slaves I told him that people used to own other people and treated them very badly. They didn't get paid and and had to do what ever the owner said or they would get beaten. He looked up at me and said " oh like you and me. " I told him to look for a John Cena book next time.