Although Rogers himself conducted encounter group workshops for as many as 800 people at a time, most groups range in size from 8 to 15 persons and meet from 20 to 60 hours over several sessions. The group begins with no formal structure or agenda and no leader in the usual sense. There is no one who authoritatively directs the group or tell the group members what to do. The people who run encounter groups are called facilitators; their job involves establishing an atmosphere in which the group members can ex-