I am reading, "The Order of the Phoenix," the fifth Harry Potter book. Although I haven't got very far, I have seen some bits of theme in my book.

I think one of the parts of the theme is, life is unfair, and people won't always believe you. I say that life is unfair because when Harry was attacked and used magic in a muggle neighborhood, he almost got expelled, just for using magic to save his life. The other theme- people won't always believe you shows when Harry went to court. In the courtroom when he was stating the case, almost half of the jury thought that he was lying and just making things up. Even when he brought out a witness that said just what he said, they still thought he just made it up. He did get out innocent, but only by a little bit. Also just last year when he saw Voldemort come back, nobody believed him except for dumbledor and a few other wizards who were part of the Order of the Phoenix. The whole ministry of magic said he was lying, and refused to believe anybody who said that Voldemort was in-fact alive.

Concluding, that even though I haven't read very much, I still see some themes in the book, and I believe as I progress through the book I will find more themes and evidence for the two previous ones.