Dr. Christopher Hayre is a senior lecturer at Charles Sturt University in New South Wales, Australia. He has published both qualitative and quantitative refereed papers in the field of medical imaging and brought together several books in the field of medical imaging, health research, technology, and ethnography. Professor Dave Muller is currently Editor of the CRC series with Professor Marcia Scherer on Rehabilitation Science in Practice. He was founder Editor of the Journal Aphasiology and is currently Editor in Chief of the Journal Disability and Rehabilitation. He has published over forty refereed papers and has been involved either as Series Editor, Editor or author of over fifty books. He is a visiting Professor at the University of Suffolk, United Kingdom. Professor Marica Scherer is a rehabilitation psychologist and founding President of the Institute for Matching Person & Technology She is also Professor of Physical Medicine and Rehabilitation, University of Rochester Medical Center where she received both her Ph.D. and MPH degrees. She is a past member of the National Advisory Board on Medical Rehabilitation Research, National Institutes of Health, and is Editor of the journal Disability and Rehabilitation: Assistive Technology. She is Co-Editor of the book series for CRC Press, Rehabilitation Science in Practice Series. Dr. Scherer is Fellow of the American Psychological Association, American Congress of Rehabilitation Medicine, and the Rehabilitation Engineering and Assistive Technology Society of North America (RESNA). Dr. Scherer has authored, edited, or co-edited nine book titles and has published over 80 articles in peer-reviewed journals, 50 published proceedings papers, and 30 book chapters on disability and technology. Her research has been cited more than 5000 times by others.