Chapter 1 examines what mental illness stigma is and analyzes the components of mental illness stigma to show how people with mental illness experience stigma in their daily lives. These components include labeling, stereotyping, prejudice, moral distancing, social exclusion, status loss, dehumanization, microaggressions, discrimination, and epistemic injustice. In each case, I use empirical evidence from the social psychology literature on stigma to show ways in which people with mental illness experience these forms of stigma. Next, I look at factors that affect the kind, degree, and scope of stigma associated with mental illness, including beliefs, political values, cultural values, socioeconomic status, education, and gender. Finally, I examine how many people experience compounding stigmas that come from multiple sources.