This book provides a comprehensive overview of the problems created by prejudiced attitudes, racist beliefs, and acts of discrimination from the casual racial or ethnic joke to the unrestrained violence of a lynch mob. It addresses such topics as the nature of ethnicity, stereotyping, aggression, and hate groups and individuals who promote ethnic and racial hatred. Traced is the history of race as a scientific concept and its use as a social concept designed to stigmatize and subordinate members of minority racial and ethnic groups. Chapters on prejudice, stereotyping, and discrimination scapegoating provide a foundation for the chapter on hate groups and haters, which includes in-depth descriptions of beliefs and activities of white supremacist groups and individuals who promote racism and anti-Semitism. Throughout the book most case studies and examples focus on the black and Jewish experience. The final chapter concerns the teacher's role in teaching about hate prejudice and violence. It reexamines the issues and concepts presented and their implications for social education, and it discusses several curricular strategies, including the use of literature. Contains a bibliography of over 180 items and an index. (GLR)