This indispensable clinical resource and text helps readers understand the latest developmental knowledge and apply it in their work with children and families. The book begins with a framework elucidating the transactions between individual development and the child's wider environment, and emphasizing the crucial role of attachment. Key developmental processes and tasks from infancy through middle childhood are then discussed in paired chapters that respectively address how children of different ages typically feel, think, and behave, and how to intervene effectively with those who are having difficulties.