Occupational therapy is a health care profession that includes the use of assessment and intervention to develop, recover, or maintain the meaningful activities of individuals and communities. Occupational therapy aims to treat people with mental health problems, disabilities, injuries, or impairments. Helping children with disabilities to participate fully in school and social activities, injury rehabilitation and providing supports for older adults experiencing physical and cognitive changes are some Common occupational therapy interventions. Occupational therapy borrowed its principles and techniques from many disciplines such as physical therapy, nursing, psychiatry, orthopedics and social work. The book studies, analyses and upholds the pillars of occupational therapy and its utmost significance in modern times. It is compiled in such a manner, that it will provide in-depth knowledge about the theory and practice of occupational therapy. This book is a complete source of knowledge on the present status of this important field.