The literature reports occupational therapy group interventions much more frequently today than 2 decades ago when this book was first published. Furthermore, occupational therapy groups now target not only mental health adult clients, but also children, youth, and older adults with a variety of physical, neurological, and developmental health conditions. We can speculate that part of the reason is the availability of more flexible sources of funding for occupational therapy services, allowing reimbursement for group interventions by medical insurance or from public sources. But more importantly, we now have an abundance of evidence that group interventions work, especially when the occupational therapy group leaders skillfully facilitate the development of social and emotional support so vital to the client’s sustained effort in facing health challenges (Bandura, 2001). Also, groups are cost effective, because they support self-management and selfefficacy, both important factors for preventing illness and keeping people well, away from hospitals or costly institutions, and living in their communities (e.g., the Well Elderly Study, Clark et al., 2011).