You experience it daily: You restrain yourself from crying when sad, from having a tantrum when furious, remain calm in the face of danger. In everyday life, people frequently encounter situations in which they control their experience and expression of emotion, especially negative ones, in order to respond appropriately to situational affordances. Thus, regulation of emotion is an important factor of everyday functioning. Still, we do not know precisely how people regulate their emotions. The present book answers questions about what cognitive processes possibly operate in emotion regulation and how they work.