Interaction is a prominent part of our everyday life and experience; daily reality is constructed within the interactions that individuals establish with those around them, with whom they share experiences in a concrete context. Objects, phenomena and individuals permanently influence each other through this dynamic process. The authors of this volume engage in an on-going interpretative process of defining this influence, giving considerable attention to the way participants to interaction try to understand each other, to interpret each other's activity and prove this in an explicit or...