This handbook provides comprehensive advice for policy-makers, practitioners, and stakeholders involved in the development, implementation, and monitoring of evidence-based parenting interventions. It offers a practical, step-by-step approach to selecting, designing, evaluating, implementing, monitoring, and scaling up parenting interventions in different contexts, and, by referencing relevant research and offering templates and other resources to support implementation, it acts as a bridge between the evidence for parenting interventions and practice, and is a companion to the WHO guidelines on parenting interventions to prevent maltreatment and enhance parent–child relationships with children aged 0–17 years).