After psychotherapy, social work is the most important beneficiary of the humanistic psychology’s theory and methodology.[52] These have produced a deep reform of the modern social work theory and practice,[53] leading, among others, to the occurrence of a particular theory and methodology: the humanistic social work.
Most values and principles of the humanistic social work practice, described by Malcolm Payne in his book Humanistic Social Work: Core Principles in Practice, namely creativity in human life and practice, developing self and spirituality,
developing security and resilience, accountability, flexibility and complexity in human life and practice,[50] directly originate from the humanistic psychological theory and humanistic psychotherapy practice.