Georges Greiner’s *Fonctions maternelle et paternelle* offers a concise exploration of the roles parents play in early childhood development. Drawing on observations from his work with young children, Greiner outlines practical strategies for nurturing emotional security, fostering independence, and supporting cognitive growth during the formative years. The text balances theoretical insight with everyday advice, making it a useful resource for parents, early‑year educators, and anyone interested in the dynamics of mother‑child and father‑child relationships. Though brief, the book’s clear language and concrete examples aim to empower caregivers to create supportive environments that promote healthy development.