This book frames how existential theory and intervention strategies can be seamlessly integrated with evidenced-based approaches when treating adolescents. This groundbreaking text begins with an overview of EI theory and provides an exhaustive review of risk and protective factors that contribute to an adolescent's experience of existential anxiety. Other book highlights include a proposed developmental model of existential anxiety in adolescence, and individual chapters devoted to working with adolescents who present with anxiety, depression, substance abuse concerns, and disruptive behaviors. Rich case study descriptions enrich this exciting and impactful approach with empirical support.