There is increasing Government recognition of the importance of early family experiences on long-term individual and family level outcomes and a better understanding of how inter-parental conflict influences children's development is key to helping practitioners and policy makers promote improved outcomes for children. This accessible book reviews recent research showing how children who experience high levels of inter-parental conflict are at serious risk not only in terms of their own well-being, but also in relation to the perpetuation of these behaviours later in life. It examines the differences between 'destructive' and 'constructive' conflict and how they affect children, explores why some children are more adversely affected than others, and features the latest evidence on how conflict impacts on child physiology. Of particular note is the book's focus on the growing literature on conflict interventions that have shown an expansion of evidence within the last decade. A primer for practitioners working with families, policy makers, students and academics, it will show how to improve the tomorrows for children who experience challenging family experiences today.