Joshua D. Miller, professor in the Department of Psychology, is a preeminent researcher in the field of psychopathological impairment, specifically in personality disorders with a focus on narcissism and psychopathy. Among his accomplishments is demonstrating that personality disorders are “built” from the same basic components found in “normal” personality but represent problematic configurations because of their extremity and inflexibility. Many clinicians prefer this approach because it provides more focused tools for conceptualization, assessment, and treatment. Over the past two decades, his research helped lay the groundwork for changes in the official “Diagnostic and Statistical Manual of Mental Disorders, fifth edition.” He is an exceptionally productive and influential scholar, producing 325 peer-reviewed publications and book chapters, an acclaimed edited text on narcissism and a recent edited handbook on the assessment and treatment of antagonism. According to Google Scholar, he has been cited more than 33,000 times, and about 21,000 of those have been in the last five years.