Irene Levin is a Professor in the Department of Social Work, Child Welfare and Social Policy at Oslo University College, Norway. Marit Haldar is Professor in the Department of Social Work, Child Welfare and Social Policy at Oslo University College, Norway. Aurélie Picot is a Fellow in the Department of Social Work, Child Welfare and Social Policy at Oslo University College, Norway.

• Introduction – Social work and sociology: historical separation and current challenges 1. Sociological social workers: a history of the present? 2. The other Chicago school – a sociological tradition expropriated and erased 3. The theoretical foundation of social case work 4. Evidence and research designs in applied sociology and social work research 5. The help system and its reflection theory: a sociological observation of social work 6. Why social work and sociology need psychosocial theory 7. Complex issues, complex solutions: applying complexity theory in social work practice 8. What happens to the social in social work?

Irene Levin is a Professor in the Department of Social Work, Child Welfare and Social Policy at Oslo University College, Norway. Marit Haldar is Professor in the Department of Social Work, Child Welfare and Social Policy at Oslo University College, Norway. Aurélie Picot is a Fellow in the Department of Social Work, Child Welfare and Social Policy at Oslo University College, Norway.

• Introduction – Social work and sociology: historical separation and current challenges 1. Sociological social workers: a history of the present? 2. The other Chicago school – a sociological tradition expropriated and erased 3. The theoretical foundation of social case work 4. Evidence and research designs in applied sociology and social work research 5. The help system and its reflection theory: a sociological observation of social work 6. Why social work and sociology need psychosocial theory 7. Complex issues, complex solutions: applying complexity theory in social work practice 8. What happens to the social in social work?