The highly anticipated second edition of Clinical Supervision: A Competency-Based Approach is groundbreaking and science-informed, the comprehensive resource for the training and supervision of mental health professionals. This new edition heralds the substantial progress that has taken place as competency-based clinical supervision has become acknowledged as a distinct professional competence, in keeping with the Guidelines for Clinical Supervision in Health Service Psychology (2014, 2015). Falender and Shafranske provide a unique bridge to practice for supervisors, helping them integrate the latest research findings and emerging practices into a multicultural frame. They cover key areas such as trauma-informed and assessment supervision and telesupervision, and bring empirical support, models, and research into every step of the supervision process. This comprehensive text describes the essential knowledge, practical skills, and attitudes implicit in the supervisor competence needed to shape the practice of clinicians in training as well as professionals in all settings to enhance competence, develop their professional identity, and shape future practice. Supervisors, supervisees, training and program directors, administrators, students, thought leaders, and researchers will all benefit from this essential volume.