Finding Flow: The Psychology of Engagement with Everyday LifeBook · 1997Csikszentmihalyi's accessible distillation of his flow research, applied to the psychology of optimal experience in everyday life.Flow: The Psychology of Optimal ExperienceBook · 1990Csikszentmihalyi's foundational 1990 book introducing flow theory based on decades of empirical psychological research at the University of Chicago. Distinct from his 1997 popular companion *Finding Flow* (csikszentmihalyi-finding-flow.md): Flow is the canonical theoretical text; Finding Flow applies the theory to everyday life.