This book, Cognitive Behavioral Therapy for Children and Adolescents: Basic Principles and Techniques, has emerged as a product of years of postgraduate courses, supervision and psychotherapy activities by three academics who are experts in the field of clinical psychology. In the book, information about the therapy process such as the therapeutic relationship, the structure and application of therapy, explanations on the theoretical foundations of cognitive and behavioral methods used, as well as a detailed introduction of therapy techniques through case examples are included. Since the book is mainly based on the authors' own clinical practices, the examples presented in the book are examples that include the difficulties experienced in many cases, the child characteristics witnessed, school and family structures. It is an up-to-date and original work, enriched with creative suggestions on how to adapt the described interventions to children of different ages, and a variety of exercises to engage children. The book is a basic reference source both for people who have limited practical experience and for postgraduate students, as well as for specialists such as psychologists, child psychiatrists, guidance teachers, family counselors, who provide psychological assistance to children and adolescents in their daily practice.