Council of Coaches - A Novel Holistic Behavior Change Coaching Approach Topics: Agent-based Interfaces; Autonomy and Active Ageing; Intelligent Companions; Multi-modal Interaction ; Personalized Interfaces; Speech and Tactile Interfaces; Systems to Encourage Healthy Lifestyles In Proceedings of the 4th International Conference on Information and Communication Technologies for Ageing Well and e-Health ICT4AWE - Volume 1, 219-226, 2018 , Funchal, Madeira, Portugal