This document summarizes key concepts from Erving Goffman's book Stigma. It discusses how Goffman defines stigma and the relationship between stigma and a person's social, personal, and ego identity. It also covers his concepts of discredited versus discreditable stigma, stigma management through passing and covering, the roles of in-group and out-group alignment, and deviations from social norms. The summary examines how stigma influences interactions and a person's psychological well-being. It poses discussion questions about applying Goffman's framework to understanding stigma in modern society.