Today the infant mental health field includes a multidisciplinary team of practitioners with very different training and education needs. Implementation research has shown that appropriate training is a key factor for successful outcomes of an intervention and that supervision and coaching are crucial. All professionals who work with young children and their families need appropriate training to provide family-centered, diversity-informed, and developmentally appropriate services across the continuum of infant-family mental health. This article describes a comprehensive teaching and supervision model for mastering the core elements in the Newborn Behavioral Observations system that has been developed over the 2 last years in Norway.