for reasons to justify the choices made. Consumer behaviour scholars and pyschologists call this phenomenon cognitive dissonance, and certain individuals are more sensitive than others in developing this than others. This book offers a deep investigation around online impulse buying and subsequent cognitive dissonance. Specifically, the authors present a research case study of a group of millenials who are shopping for smartphones to study whether an initial positive state can reduce the onset of cognitive dissonance in consumers. Based on substantial research and a sample of 212 impulsive millennial buyers, the book provides a comprehensive, but simple and synthetic framework of impulse buying, cognitive dissonance and positive affect state, highlighting their relationships.