Political speeches, theatre performances, television shows, Facebook entries, music concerts, sports events, Instagram posts, religious ceremonies, court trials – these heterogeneous and in many aspects incomparable social and cultural phenomena have one thing in common: they address, require and constitute audiences. The conference “Public Emotions. Affective Collectivity in Audiences” discusses contemporary forms and activities of audiences and explores their changing roles in today’s mobile, mediatized and networked societies. As audiences are a collective phenomenon, the conference highlights collective forms of actions and emotions, and their entanglement. Our special attention is drawn to the specific agency of audiences, and to the role of affects and emotions in audiences – especially within forms of affective collectivity.