This book provides the foundations and training that social workers need to master cognitive behavior therapy (CBT). CBT is based on several principles namely cognitions affect behavior and emotion; certain experiences can evoke cognitions, explanation, and attributions about that situation; cognitions may be made aware, monitored, and altered; desired emotional and behavioral change can be achieved through cognitive change. CBT employs a number of distinct and unique therapeutic strategies in its practice. As the human services increasingly develop robust evidence regarding the effectiveness of various psychosocial treatments for various clinical disorders and life problems, it becomes increasingly incumbent upon individual practitioners to become proficient in, and to provide, as first choice treatments, these various forms of evidence-based practice. It is also increasingly evident that CBT and practice represents a strongly supported approach to social work education and practice. The book covers the most common disorders encountered when working with adults, children, families, and couples including: anxiety disorders, depression, personality disorder, sexual and physical abuse, substance misuse, grief and bereavement, and eating disorders. Clinical social workers have an opportunity to position themselves at the forefront of historic, philosophical change in 21st-century medicine. While studies using the most advanced medical technology show the impact of emotional suffering on physical disease, other studies using the same technology are demonstrating CBT’s effectiveness in relieving not just emotional suffering but physical suffering among medically ill patients.