The book offers developmentally appropriate and advanced tools for using EMDR therapy in treating children with complex trauma, attachment wounds, dissociative tendencies, and compromised social engagement. The book also presents the theoretical framework for case conceptualization in EMDR therapy and in the use of the Adaptive Information Processing model with children. Principles and concepts derived from the Polyvagal Theory, affective neuroscience, attachment theory, interpersonal neurobiology, developmental neuroscience and the neurosequential model of therapeutics, which can greatly support and expand our understanding of the AIP model and complex trauma, are presented.