This is not a book geared to one branch of activity - like gestalt group therapy, or organization development, or applications to management. The papers assembled here embrace a whole variety of practice settings and areas of professional endeavour: organisations, training groups, communities, national groupings, life - focus groups, as well as (of course) the special case of two people working together, in the relational fields of group facilitator-participant, or of consultant-consultee, or of teacher-student, all or which are fields within fields.