The lesson that I learned from this book is that you should never rush to judge a person if they're poor or not. And you should never actually pick on other people, even if they're poor or not. Maddie felt guilty for not telling her friend Peggy to stop picking on this Polish girl that was named Wanda.
They felt really really sorry for not believing Wanda when she said she has a hundred dresses (that she drew them, not actual clothing). When Wanda stopped going to their school they felt really really sad because they felt bad that they didn't get to say sorry to her in person. Wanda didn't get to get the medal for winning the art contest in person because she moved, but at least they got to mail it to her.
I think that Maddie and Peggy changed their ways of being mean and not being truthful to other people at the end of the story. I feel like that they actually didn't get to meet the real Wanda as a friend. I think Wanda is a really really nice person and truthful to her friends if she had some. I felt bad for her at the end of the story because she didn't have a mother and she was poor. She only wore this blue dress that was raggedy but it was clean even though it was wrinkly.