This book not only defines but also describes and discusses each of the concepts selected in relation to its theoretical, historical, and empirical background, with the aim of informing the reader about its place in the discipline, its origins, the purpose for which it was intended, and the extent to which it has been found useful. Arranged thematically in sections corresponding to chapter headings usually found in textbooks, this book could act as either a primary or secondary source for students wanting an accessible book to enrich their learning experience.This book not only defines but also describes and discusses each of the concepts selected in relation to its theoretical, historical, and empirical background, with the aim of informing the reader about its place in the discipline, its origins, the purpose for which it was intended, and the extent to which it has been found useful. Arranged thematically in sections corresponding to chapter headings usually found in textbooks, this book could act as either a primary or secondary source for students wanting an accessible book to enrich their learning experience. Students of development psychology (at al levels) will appreciate how Professor Schaffer covers the important concepts that we all find fascinating and he does it in an approachable and informative way. Key Concepts in Developmental Psychology brings together an abundance of literature and ideas to create a book that could find a home in our libraries and classrooms. Conceptions of Development Mechanisms of Change Biological Aspects Individuality Cognitive Development Social Cognition Relationship Formation Socialization Linguistic and Communicative Development