This document discusses group communication and dynamics. It defines a group as having 3 or more individuals who interact over time while depending on each other to reach a common goal. The ideal group size is listed as 4-7 people. Key factors that affect group communication are identified as cohesion, size, power relationships, and cultural differences. The document also outlines types of group communication, types of groups, steps for decision making, and functional and dysfunctional roles within groups.