Topics: studying groups, inclusion, identity, formation, cohesion, development, structure, influence, power, leadership, performance, teams, decision making, conflict, intergroup relations, groups, change, crowds, collectives, group dynamics, individualism, collectivism, personal identity, social identity, affliation, attraction, norms, roles, intermember relations, social network analysis, majority influebce, minority influence, authority, leading groups, leadership emergence, leader effectiveness