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Martin J. Ball is Honorary Professor in the School of Linguistics and English Language at Bangor University, Wales.

Until recently he was Professor of Clinical Linguistics and Phonetics at Linköping University, Sweden, having formerly held the position of Hawthorne-BoRSF Endowed Professor in the Department of Communicative Disorders, at the University of Louisiana at Lafayette. He received his bachelor’s degree with honours in Linguistics and English from the University of Wales (Bangor); his Master’s degree in phonetics and linguistics from the University of Essex; his Ph.D. from the University of Wales (Cardiff), and a DLitt degree from Bangor University.

Dr Ball has authored and edited over 35 books, 50 contributions to collections and 100 refereed articles in academic journals. He has also presented at conferences around the world. He is co-editor of the journal Clinical Linguistics and Phonetics (Taylor & Francis); and of the book series Studies in Phonetics and Phonology (Equinox), Communication Disorders across Languages (Multilingual Matters), and Language and Speech Disorders (Psychology Press). His main research interests include sociolinguistics, clinical phonetics and phonology, and the linguistics of Welsh. He has been President of the International Clinical Phonetics and Linguistics Association; he is an honorary Fellow of the UK Royal College of Speech and Language Therapists, and a Fellow of the Learned Society of Wales. His most recent books are Principles of Clinical Phonology (Routledge, 2016) and Challenging Sonority (co-edited with N. Müller, Equinox, 2016).

Nicole Müller is Professor of Speech and Hearing Sciences at University College Cork, Ireland. Her areas of research interest include clinical linguistics, clinical discourse studies and pragmatics, age-related disorders of communication and cognition, multilingualism, and systemic functional linguistics. She is co-editor of the journal Clinical Linguistics and Phonetics and of the book series Communication Disorders across Languages.

Chris Code is Professorial Research Fellow in the School of Psychology, Foundation Professor of Communication Sciences and Disorders (Hon) at the University of Sydney, Visiting professor University of Louisianna at Lafayette and used to be Research Manager for Speakability, the British lobbying and advocacy charity for aphasic people conducting research into the psychosocial consequences of aphasia and is Speakability‘s National Adviser on Aphasia. He is Patron of AphasiaNow. He has also been Fellow of the Hanse Institute for Advanced Stdy, Delmonhurst, Germany and Visiting Professor at the University of Bremen, Germany. His research interests include the cognitive neuroscience of language and speech, psychosocial consequences of aphasia, aphasia and the evolution of language and speech, recovery and treatment of aphasia, the public awareness of aphasia, the neuropsychology of number processing and speech and limb apraxias, facial action. He is co-founding Editor of the international journal Aphasiology, past Editor of the International Journal of Language & Communication Disorders and the Australian Journal of Communication Disorders, and is on the editorial boards of several journals. His books include Aphasia Therapy (1982 with DJ Müller), Language, Aphasia and the Right Hemisphere (1987), The Characteristics of Aphasia (1991) and Classic Cases in Neuropsychology (Vol I, 1996; Vol II, 2002) (with C-W Wallesch, Y. Joanette & AR Lecour) and Milestones in the History of Aphasia (2008) (with Juergen Tesak). He is a Fellow of the British Psychological Society and Fellow of the Royal College of Speech and Language Therapists and was recently honoured with a festschrift, Clinical Aphasiology. edited by MJ Ball & Jack Damico . He received the Robin Tavistock Award for Services to Aphasia in 2010.