There is a dominant conception of the human animal as a rational, or at least reasonable, preference-driven chooser, whose behavior reflects preferences, moderated by information processing and will, but little else. Laws, policies, and the most influential legal theories are premised on that same conception. Social psychology and related fields have discovered countless ways in which that conception is wrong. “The situation” refers to causally significant features around us and within us that we do not notice or believe are relevant in explaining human behavior. “Situationism” is an approach that is deliberately attentive to the situation. It is informed by social science—particularly social psychology, social cognition, cognitive neuroscience and related fields—and the discoveries of market actors devoted to influencing consumer behavior—marketers, public relations experts, and the like. The Situationist is a forum for scholars, students, lawyers, policymakers, and interested citizens to examine, discuss, and debate the effect of situational forces – that is, non-salient factors around and within us – on law, policy, politics, policy theory, and our social, political, and economic institutions.