This article provides an overview of the field of human rights education (HRE) using an input/output schema. It examines the challenges encountered at the delivery points where instructors must contextualize the now extensive corpus of human rights documents and practices to meet the needs, and the political and cultural traditions, of their particular target population. The challenges also point to the dominance of prescriptive over evaluative HRE literature, the degree to which HRE is not a stand-alone activity and the limited HRE-specific teacher training. The authors therefore call for more research on the long-term HRE outcomes of human rights education initiatives.