Scout learns about the existence of prejudices and social, cultural and racial divisions between people. The most dramatic instance of this in the book is, of course, the trial and unfair conviction of Tom Robinson who doesn't stand a chance from the first, simply because he is black. Scout at first is too young to understand such issues but she is helped in this by her older brother Jem, certain wise adults like Miss Maudie and most of all, by her father Atticus, who has vast tolerance, compassion and understanding. He helps her learn how to see past the social, cultural and racial barriers which are all too-commonly erected between people. The book shows Scout's loss of childhood innocence in her discovery of prejudice and injustice but also shows her gaining in insight and understanding.