From the time we're babies, our brains constantly sort and label the world around us - a skill that's crucial for our survival. But, as adolescents are all too aware, there's a tremendous downside: when we do this to groups of people it can cause great harm. Here's a comprehensive introduction to the science behind stereotypes that will help young people make sense of why we classify people, and how we can change our thinking. Besides the many ways this book could be used to inspire frank and in-depth discussions on the importance of addressing stereotypes and bias, it also links to many science and social studies curriculum topics.