This article reviews literature in composition studies since affective science's emergence in the 1980s. It focuses on composition studies’ history of adopting findings and theories from affective science, and distinguishes trends in how the field applies those elements in theoretical versus pedagogical contexts. While composition studies’ adoption of affective science in its theorizing has helped the field progress toward a “complete psychology of writing,” affective science's influence on classroom practices has not been so clear cut or direct. However, affective science is a fast-growing, liberal, and multidisciplinary field. As it progresses, composition studies continues to embrace its concepts and theories. This review notes the expectations and limitations developing through this dynamic interdisciplinary relationship.