This concise guide offers an accessible introduction to the key theoretical perspectives and methodologies in developmental psychology. It integrates insights from typical and atypical development to reveal fundamental aspects of human growth and development, and common developmental disorders. The topic books in this series draw on international research in the field and are informed by biological, social and cultural perspectives, offering explanations of developmental phenomena with a focus on how children and adolescents at different ages actually think, feel and act. In this succinct volume, Stephen von Tetzchner outlines the main theoretical perspectives including psychodynamic psychology, behaviorism, logical constructivism, social constructivism, evolutionary psychology, ethological psychology, ecological psychology, information processing and critical developmental psychology. He provides a guide to methods of gaining knowledge about children and introduces child and