The document discusses communication styles, describing them as the interaction between individuals through their behaviors. It identifies two dimensions that define an individual's communication style: dominance, referring to their tendency to take charge or be assertive, and sociability, referring to their tendency to seek social relationships and enjoy interactions. The document presents models that place people on continua for dominance and sociability, describing the tendencies of those who are low or high on each dimension. It then provides descriptions of four common communication styles - supportive, director, emotive, and reflective - based on an individual's placement on the dominance and sociability continua.