There is relatively little research on the communication skills that social workers use in direct practice with families. This study explores patterns of practice skill found in child and family social work home visits. The study analysed 127 practice interactions in family homes, coding for seven dimensions of worker skill using a coding framework drawn from motivational interviewing. Exploratory factor analysis was employed to establish patterns of skill within the data and to group key dimensions of skill. The findings make two contributions. First, three fundamental dimensions of good practice emerged, which we characterize as care and engagement, good authority, and support for behaviour change. Second, in exploring the relationship between "care" and "control" elements of social work, skilled social workers were able to combine good authority and empathic engagement, whereas those who were less skilled in use of authority were also less good at engagement. This contributes to debates about care and control in social work. The usefulness of these dimensions for conceptualizing practice in child and family social work is discussed and directions for further research are suggested. KEYWORDS child protection policy and practice, communication skills, motivational interviewing focused on direct work with children and highlighted the complexity of such conversations and the ways in which social workers manage