We’ve been doing it since the first humanoids appeared on the planet, so by now – hundreds of thousands of years into our existence – we have some basic notions about what governs our communication. We understand that our human interactions are purposeful, not random. We observe that we make choices, that there is usually room for another meaning from what we intend (so communication is ambiguous), that any communication has both a content and a relational dimension, that power is usually involved, and that it is inevitable, irreversible, and unrepeatable. In this article, we look at those in turn, and also note what the practical (skills) implications are for you. »