Isms—typically defined as harmful and discriminatory philosophies or views—are a threat to human unity and may affect outcome maximization in healthcare workplaces. Isms in Health Care Human Resources: A Concise Guide to Workplace Diversity, Equity, and Inclusion lays a foundation in which readers can become familiar with diversity, equity and inclusion issues in the workplace and gain an understanding of how isms in health care can reduce output and elevate costs. After providing an overview of isms in healthcare and other workplaces, this concise text closely examines various isms, from central tendancyism and sexualism to IQism and heterosexism while covering a range of other isms. It then proposes strategies for intermediation for healthcare administrators in order to guide them in reducing isms in the workplace and, in turn, maximizing output.