This handbook, co-authored by the World Health Organization (WHO) and UNICEF, focuses on strategic actions to strengthen services for nurturing care. It provides guidance on building systems, improving the workforce, and providing three-level support to families, emphasizing governance, planning, financing, and community engagement. The intended audience includes policymakers, health professionals, and community workers involved in child development and public health. The handbook aims to support the implementation of the Nurturing Care Framework through practical actions, overcoming barriers, and monitoring progress.