David R. Beukelman, Ph.D is the Barkley Professor of Communication Disorders at the University of Nebraska-Lincoln, Director of Research and Education of the Communication Disorders Division, Munroe/Meyer Institute of Genetics and Rehabilitation at the University of Nebraska Medical Center, A research partner in the Rehabilitation Engineering and Research Center in Augmentative and Alternative Communication, and a senior researcher in the Institute for Rehabilitation Science and Engineering at the Madonna Rehabilitation Hospital. With Pat Mirenda, he co-authored the textbook, Augmentative and Alternative Communication: Management of Severe Communication Disorders in Children and Adults. He served as editor of the Augmentative and Alternative Communication Journal for four years. Janice Light, Ph.D., is a Professor in the Department of Communication Disorders at the Pennsylvania State University. She is actively involved in research, personnel preparation, and service delivery in the area of augmentative and alternative communication (AAC). Her primary interest has been furthering understanding of the development of communicative competence and self-determination by individuals who require AAC. Dr. Light is the principal investigator on several federally-funded research grants to improve outcomes for individuals who have significant communication disabilities through the use of augmentative and alternative communication. She is one of the project directors in the Augmentative and Alternative Communication Rehabilitation Engineering Research Center (AAC-RERC), a virtual research consortium funded by the National Institute for Disability and Rehabilitation Research. In 1996, Dr. Light was recognized as the Don Johnston Distinguished Lecturer by the International Society of Augmentative and Alternative Communication for her leadership in the AAC field. In 1999, she received the Dorothy Jones Barnes Outstanding Teaching Award at the Pennsylvania State University. Laura J. Ball, Ph.D.,is an associate professor in the Department of Communication Sciences and Disorders at East Carolina University. Dr. Ball completed her doctoral degree at the University of Nebraska with research interests in AAC and motor speech disorders. Dr. Ball has more than 25 years' clinical experience and is the author of numerous publications on topics related to AAC, dysarthria, and apraxia. Dr. Fager is the Director of the Communication Center in the Institute for Rehabilitation Science and Engineering. Dr. Fager specializes in assistive technology/augmentative communication for adults with acquired and degenerative neurologic conditions such as traumatic brain injury, spinal cord injury, stroke, amyotrophic lateral sclerosis (ALS), multiple sclerosis, and Parkinson’s disease. Her research has focused on the evaluation of new and emerging assistive technologies for individuals with severe physical impairments. Dr. Garrett is currently a full-time clinician and director of an Augmentative Communication pediatric evaluation center at The Children's Institute in Pittsburgh, PA, where she works with children and young adults who have complex communication needs. She previously had full-time academic appointments at Duquesne University and the University of Nebraska, where she conducted clinical, research, and teaching activities in the areas of aphasia, brain injury, and AAC. Dr. Hanson earned her doctorate at the University of Nebraskaâ€"Lincoln and her MS at the University of Wisconsin-Madison. Her research is in augmentative and alternative communication and motor speech disorders at the University of South Dakota. Her clinical practice, supervision, and service focus on providing AAC services for people with complex communication needs across the life span. Julia M. King, Ph.D., Professor in the School of Communication Disorders at the University of Wisconsin-Stevens Point. She has published articles and chapters on supporting communication and AAC intervention for adults with chronic aphasia and adults with primary progressive aphasia. Her research, clinical, and teaching interests are related to neurogenic communication impairments and AAC intervention. Dr. Lasker has published numerous papers and chapters related to assessment and treatment of adults living with acquired neurogenic disorders who may benefit from AAC. Her research has explored issues pertaining to AAC assessment protocols, context-based intervention, partner training, and the acceptance of AAC approaches by adults with severe communication disorders and their communication partners. She has presented nationally and internationally on these topics. David B. McNaughton, Ph.D., is a professor of education at The Pennsylvania State University. He teaches coursework in augmentative communication and assistive technology and collaboration skills for working with parents and educational team members. Dr. McNaughton's research interests include literacy instruction for individuals who use AAC and supports to employment for individuals with severe disabilities. He is a partner in the Rehabilitation Engineering and Research Center in Communication Enhancement (AAC-RERC), funded by the National Institute on Disability and Rehabilitation Research (NIDRR). Dr. Nordness is the Director of the Speech-Language Pathology Department at Munroe-Meyer Institute at the University of Nebraska Medical Center. Dr. Nordness earned her doctorate in communication disorders from the University of Nebraskaâ€' Lincoln. Her research and clinical interests involve motor speech disorders and AAC across the lifespan. She leads the speech-language pathology services for individuals with amyotrophic lateral sclerosis.