This chapter provides a brief overview of the book highlighting the modest progress from child welfare to child well-being re?ected in these chapters, and the parallel movement in Kahn s career and research, as his scholarship developed over the years. It then moves to explore the relationship between two overarching themes, child and family policy stressing a universal approach to children and social prot- tion stressing a more targeted approach to disadvantaged and vulnerable individuals including children and the complementarity of these strategies. Introduction To a large extent Alfred J....