This publication is aimed at the staff of early childhood centers and daycare facilities, those responsible for family daycare services, teaching personnel, as well as students in early childhood education at CEGEPs and universities. It contains a wealth of information on measures to promote the health and development of children. The information concerns: Nutrition Daily care Hygiene and infection prevention Illness Medications The psychological well-being of children Beyond simple technical questions, the guide also emphasizes the human framework within which interventions should take place and the necessity for ongoing collaboration among those working in childcare services, health and social services personnel, and parents. The changes made to this third edition concern almost exclusively the references to legislation and regulations regarding childcare services. These have been updated to correspond to the new regulations applicable to early childhood education and care services.