However, despite this, there are not many books currently available covering these fields. As such, this text is a welcome addition, and incorporates knowledge and expertise from global professionals who have been working for years to help establish such technology. The book provides insights for budding researchers and students to explore the field further, and highlights the key challenges that need to be addressed before it is possible to fully reap the benefits from these technological interventions. It will also be useful for people working in the fields of rehabilitation and special education, as well as engineers, clinicians and industry professionals working with the disabled population.