Ageism, the denial of basic human rights of older persons, is one of the most pervasive prejudices across human society. Although ageism is less acknowledged than racism or sexism, it is a harmful prejudice that negatively affects older Americans, who experience widespread mistreatment, ranging from stereotypic and degrading media images to physical and financial abuse, unequal treatment in the workforce, and denial of appropriate medical care and services. Table of Contents: A. Introduction: Combating Ageism is a Matter of Human and Civil Rights B. Status Reports of Ageism in America C. What is Ageism? D. Creating and Perpetuating Ageism Social and Cultural Age Ageism in Media and Marketing E. Personal and Institutional Ageism Elder Abuse Ageism and Health Care Ageism in the Workplace Ageism in Emergency Services F. The Costs of Ageism G. Conclusion: A Call for Further Research and an Agenda for Action.