This document provides an overview of early childhood development from ages birth to 5. It discusses physical, cognitive, socio-emotional, and personality development during this period. Key points include: physical development involves growth in body size/proportions and motor skills; cognitive development stages include preoperational thought as described by Piaget, with limitations like egocentrism; socio-emotional development involves the self, emotions, moral development, gender roles, families/parenting styles, and peer relations; personality emerges through initiative vs guilt and self-understanding. Development progresses through milestones in each domain as children's skills and abilities expand greatly in early childhood.