Drawing on the seminal ideas of British, European and American group analysis, psychoanalysts, social psychologists and social scientists, the books in this series will focus on the study of small and large groups, organisations and other social systems, and on the study of the transpersonal and transgenerational sociality of human nature. NILGA books will be required reading for the members of professional organisations in the fields of group analysis, psychoanalysis, and related social sciences. They will be indispensable for the "formation" of students of psychotherapy, whether they are mainly interested in clinical work with patients or in consultancy to teams and organisational clients within the private and public sectors.