Uniquely interdisciplinary, this book explores contemporary applications of person-centered principles not only in counseling and psychotherapy, but also in education, health care, coaching, management, policing, and beyond. The text highlights the ongoing impact of Carl Rogers's foundational work and enumerates the essential characteristics of the person-centered approach. Leading scholars and practitioners demonstrate how a shared relational philosophy can help bring about positive change in remarkably different contexts. Following a consistent format, chapters integrate historical background, core principles and practices, rich case examples, current research, and emerging developments, with sustained attention to ethics, diversity, and social justice.