Yvonne M. Agazarian, Ed.D., FAGPA, FAPA, CGP, developed a theory of living human systems and its systems-centered practice. She has authored or co-authored six books and in 1997 she received the Group Psychologist of the Year award from the American Psychological Association, with the following citation: 'She exemplifies the finest in scholarship in the discipline of psychology.Her considerable body of work illustrates the highest blend of creativity and learning.'