There is a set of Principles that characterizes the pattern and process of growth and development. These principles or characteristics describe typical development as a predictable and orderly process; that is, we can predict how most children will develop and that they will develop at the same rate and at about the same time as other children. Although there are individual differences in children s personalities, activity levels, and timing of developmental milestones, such as ages and stages, the principles and characteristics of development are universal patterns. This book explores the principles of physical, mental and emotional growth and development in children and teenagers. It provides information on the activities and achievements usually displayed at the given stage of development and also direct readers to information on how to help children and adolescents reach their full potential as they grow and develop. To students considering employment in teaching, nursing, psychology, day-care centers, etc., this book is destined to become a valuable reference tool.