The Encyclopedia on Early Childhood Development is produced by the Centre of Excellence for Early Childhood Development (CEECD) and the Strategic Knowledge Cluster on Early Child Development (SKC-ECD). Respectively based at the Université de Montréal and Université Laval (Quebec, Canada), these two organizations have built over the years a solid network of international experts who gather, synthesize and comment, in their respective domain of expertise, the most up-to-date scientific knowledge available on the development of young children, from conception to age five. The website is available in English, French, Spanish, Portugese and Russian.