Yoland Wadsworth is a pathbreaker in research methodology and its use in social research in health, community and human services for over forty years. She has been an applied sociologist and consultant to community-based non-government organisations, self-help groups, and state, federal and local governments; an Adjunct Professor in the Centre for Applied Social Research, RMIT University; Principal Fellow in the McCaughey VicHealth Centre for Mental Health and Community Wellbeing, University of Melbourne; and deputy to the Director of the Policy & Research Branch in Premier & Cabinet, Victorian government. She is also author of the best-selling Everyday Evaluation on the Run (Vol 2 in this 40th anniversary Routledge trilogy) and culminating magnum opus, Human Inquiry for Living Systems: Building in Research and Evaluation for Life (Vol 3 in this same Routledge trilogy).