This book provides an integrated perspective on disabilities of the various disciplines of human services for counselors, social workers, and allied health professions in training. It provides an interdisciplinary and intersectional perspective on disability and psychosocial adjustment to disability in rehabilitation counseling, social work, and allied health professions. It also includes foundations of disability studies, advocacy, the disability rights movement and disability legislation, policy, and law. There is a focus on select persistent and emerging population trends in disability studies, which are supported in the literature as populations that are anticipated to represent a growing and greater proportion of individuals in need of disability and integrated services. The attention to psychosocial adaptation to disability along with the inclusion of case studies and field-based experiential exercises related to specific topics make this book an invaluable resource for students and professionals alike. The human services professions contain a wide variety of disciplines that assist individuals, families, and populations to improve their capacity to function as individuals and in society. These professionals possess specific competencies and credentials, but operate from an interdisciplinary knowledge base that requires coordination among professionals, programs, and agencies in service delivery. The disciplines typically included in responding to disability-related issues are rehabilitation counseling, counseling, mental health, social work, rehabilitation sciences, psychology, and allied and health sciences. A key feature of each chapter is application from an intersectional perspective of issues related to addressing the service needs of persons with disabilities. Based on the foundations of understanding services providers’ scope of practice, the text discusses the roles and functions of human services providers, ethics in service delivery, professional credentials, cultural competency, and family and life span perspectives of disability.