Health care professionals need to understand their patients' views of their condition and its effects on their health and well-being. This book builds on the World Health Organization's concepts of 'health', 'functioning' and 'quality of life' for young people with neurodisabilities: it emphasises the importance of engaging with patients in the identification of both treatment goals and their evaluation. Uniquely, it enables health care professionals to find critically reviewed outcomes-related information. The authors are leaders in their respective research fields and discuss theory, concepts, and evidence, and how these are applied in clinical settings and research applications.