Abstract: This international, peer-reviewed journal aims to advance knowledge in the growing and strongly interdisciplinary area of Interaction Studies in biological and artificial systems. Understanding social behaviour and communication in biological and artificial systems requires knowledge of evolutionary, developmental and neurobiological aspects of social behaviour and communication; the embodied nature of interactions; origins and characteristics of social and narrative intelligence; perception, action and communication in the context of dynamic and social environments; social learning, adaptation and imitation; social behaviour in human-machine interactions; the nature of empathic understanding, behaviour and intention reading; minimal requirements and systems exhibiting social behaviour; the role of cultural factors in shaping social behaviour and communication in biological or artificial societies.The journal welcomes contributions that analyze social behaviour in humans and other animals as well as research into the design and synthesis of robotic, software, virtual and other artificial systems, including applications such as exploiting human-machine interactions for educational or therapeutic purposes. Fields of interest comprise evolutionary biology, artificial intelligence, artificial life, robotics, psychology, cognitive neuroscience, computational neuroscience, cognitive modeling, ethology, social and biological anthropology, palaeontology, animal behaviour, linguistics. Interaction Studies publishes research articles, research reports, and book reviews.Interaction Studiesis a successor of Evolution of Communication. While IS significantly broadens the original aims and scope of EoC, we clearly continue to encourage researchers studying the origins of human language and the evolutionary continuum of communication in general to submit high quality manuscripts to Interaction Studies.