The 22nd Workshop on Aggression was held in Limassol, the 2nd second largest urban area in Cyprus, in November 22-25, 2017, and was organized by the University of Cyprus. There were five keynote speakers, eight symposia, nine paper sessions and one poster session. In total, 78 high quality individual papers were presented, covering a broad area of research fields in accordance to the theme of the workshop. The thematic focus of the 22nd Workshop on Aggression 2017 was "Contemporary perspectives on aggressive behavior: Exploring trends across the lifespan". The conference aimed to present the latest research and stimulate interdisciplinary research mainly in the fields of: (1) conventional and cyber forms of aggression; (2) personality and environmental factors of aggression; (3) neuroscience and aggression; and (4) prevention and intervention programs of aggression.