Now in a revised and updated fourth edition, this trusted text and professional resource provides a developmental framework for clinical practice. The authors examine how children's trajectories are shaped by transactions among family relationships, brain development, and the social environment. Risk and resilience factors in each of these domains are highlighted. Covering infancy, toddlerhood, the preschool years, and middle childhood, the text explores how children of different ages typically behave, think, and relate to others. Developmentally informed approaches to assessment and intervention are illustrated by vivid case examples. Observation exercises and quick-reference summaries of each developmental stage facilitate learning.   New to This Edition *Incorporates a decade's worth of advances in knowledge about attachment, neurodevelopment, developmental psychopathology, intervention science, and more. *Toddler, preschool, and school-age development are each covered in two succinct chapters rather than one, making the book more student friendly. *Updated throughout by new coauthor Michael F. Troy, while retaining Douglas Davies's conceptual lens and engaging style.