This book brings together leading scholars from the field of spatial cognitive development to examine how the spatial mind emerges from its humble origins in infancy to its mature, flexible, and skilled adult form. Each chapter presents cutting-edge research and theory that asks: what changes in spatial cognition occur over development, and how do these changes come about. The authors provide conceptual as well as formal theoretical accounts of developmental process at multiple levels of analysis (e.g. genes, neurons, behaviours, social interactions), providing a contemporary overview of general mechanisms of cognitive change. In addition, commentators place these advances in our understanding of spatial cognitive development within the field of spatial cognition more generally.