Femmie Juffer is professor emeritus in the field of adoption and foster care at Leiden University, the Netherlands. Her main interests focus on the lifelong consequences of early childhood neglect and abuse in adopted and foster children, as well as their often remarkable resilience and developmental recovery. She was involved in designing and testing interventions to support sensitive parenting and secure attachment in children. Marian Bakermans-Kranenburg is full professor at ISPA Lisbon. She studies attachment and emotion regulation in parents and their children, with a special emphasis on neurobiological processes in parenting and development. Her academic interests include the interplay between nature and nurture, and hormonal correlates of parenting, in particular, in fathers. She considers parenting interventions very important to support parents and to shed light on the processes that steer child development. Marinus H. van IJzendoorn is visiting professor at UCL University of London and Erasmus University Rotterdam, and professor emeritus of Leiden University. He is co-principal investigator of Generation R, a large cohort study of families in Rotterdam, the Netherlands, and scientific consultant of the Leiden Consortium on Individual Development (L-CID) conducting a VIPP-SD intervention study with an accelerated longitudinal twin design. In the current era of the brain and the genome, his main goal is to document the role of parents and other caregivers in shaping their children’s lives.