The aim of this collection is to show how work in the analytic philosophical tradition can shed light on the nature, value, and experience of anxiety. Contrary to widespread assumptions, anxiety is not best understood as a mental disorder, or an intrinsically debilitating state, but rather as an often valuable affective state which heightens our sensitivity to potential threats and challenges. As the contributions in this volume demonstrate, learning about anxiety can be relevant for debates, not only in the philosophy (...) of emotion, but also in epistemology, value theory, and the philosophy of psychopathology. In this introductory article, we also show that there is still much to discover about the relevance that anxiety may have for moral action, self-understanding, and mental health. (shrink)