This book focuses on the practice of child psychotherapy, the theories and treatment practice. The book is divided into three parts. The first part dwells on the need for developmentally grounded child psychotherapy. It explores theories of human development, also referred to as developmental psychology and educational theory in order to understand how children are challenged to learn, and reviews theories that speculate how love and our earliest relationships impact health and well-being. Part II assimilates the developmental theory into the pragmatics of child psychotherapy. It discusses the pragmatics of providing child psychotherapy with considerations for therapists, focuses on the legal and ethical challenges that arise when providing child psychotherapy, and reviews the types of assessment tools that cover all phases of development, including emotional, social, developmental, educational, and psychological. The third part presents the best practices in child psychotherapy. Here, models of evidence-based practice in child psychotherapy are reviewed with examples of what each model offers to the treatment process. These theories also describe what the therapist brings to psychotherapy based on the therapist’s belief of what therapy looks like and the therapist’s role in the relationship with the client. One of the chapters guides the therapist through case conceptualization that integrates the most efficacious treatment interventions into the eight-phase template of eye movement desensitization and reprocessing (EMDR). Basic issues such as sleeping, feeding, emotional dysregulation, and learning issues are also discussed with common responses and references to provide to parents through a developmentally grounded practice.