The Practitioner aims to empower participants in the process of change by exploring perceptions, building on their strengths and challenging assumptions. Relationships, interactions and behaviour can improve as participants change their communication style. VIG is based on theories of intersubjectivity; Attachment theory; Theories of mediated learning; Theories of change which emphasise respect, empowerment and collaboration; Theories of change which use self-modelling and video feedback. VIG was first developed as a parent-child intervention, with the aim of developing attunement and attachment between infant and caregiver. Today, VIG has developed and is being used in a range of ways in Educational and Clinical Psychology Services, Children’s Services, Community Care and Criminal Justice.