This book revisits classic studies in Developmental Psychology with a view to showing not only how they shaped the field, but also how the field has itself moved on through engagement with the issues these studies raise. It engages critically with the studies in order to reveal new ways of thinking both about them and about the ideas they explore. In effect, it shows how Developmental Psychology can be - and has been - taken forward in exciting ways through a careful re-examination of the core studies that lie at its heart.