Psychogeography is the study of how geographic environments influence individuals' emotions and behaviors. It involves exploring landscapes in unconventional ways to gain unique perspectives. Techniques include deriving, which involves drifting through an area without a fixed route or purpose. The Situationists in 1950s Paris were early practitioners of psychogeography and deriving as a way to transform perceptions of places and everyday life. Modern interest has revived with groups conducting psychogeographic walks and events to re-experience urban environments. Mobile apps now offer new ways to engage in psychogeographic mapping and storytelling about places.