This document discusses key concepts relating to group dynamics and team effectiveness. It covers common concerns people have when entering new groups, such as establishing their identity, influence and acceptance. It also outlines stages of group development and conditions necessary for team success, including interdependence, leadership, joint decision making and equal influence. The document discusses the relationship between task and process dimensions in groups and how cohesiveness relates to productivity. It provides tips for promoting cohesiveness and lists characteristics of an effective team.