Liminal Minorities adresses the question of why some religious minorities provoke the ire of majoritarian groups and become targets of organized violence, even though they lack significant power and pose no political threat. Guenes Murat Tezcuer argues that these faith groups are stigmatized across generations, as they lack theological recognition and social acceptance from the dominant religious group. Religious justifications of violence have a strong mobilization power when directed against liminal minorities, which makes these groups particularly vulnerable to mass violence during periods of political change. Offering the first comparative-historical study of mass atrocities against religious minorities in Muslim societies, Tezcuer focuses on two case studies-the Islamic State's genocidal attacks against the Yezidis in northern Iraq in the 2010s and massacres of Alevis in Turkey in the 1970s and 1990s-while also addressing discrimination and violence against followers of the Baha'i faith in Iran and Ahmadis in Pakistan and Indonesia. Analyzing a variety of original sources, including interviews with survivors and court documents, Tezcuer reveals how religious stigmatization and political resentment motivate ordinary people to participate in mass atrocities.