Differences are part of human life, and talking about them can help us connect with others. This book introduces key concepts related to difference. It offers clear definitions that will help readers build the vocabulary they need to recognize, describe, and have meaningful conversations about different identities. These concepts are discussed in the context of American society, and primary sources show how people with diverse identities have struggled for inclusion. Valuing others can be simple, and this book offers universal ways to show respect. It encourages readers to view differences as gifts that make our communities stronger.