Margaret Harris is Professor of Psychology and Head of the Department of Psychology, Social Work and Public Health at Oxford Brookes University. She began her career as a lecturer at Birkbeck College, moving to Royal Holloway University of London in 1989 as a Senior Lecturer and then Reader and Professor. She moved to Oxford Brookes University in 2006. Margaret's main interests are in the development of written and spoken language and she has published widely in this area. She has had a long-standing interest in the language development of deaf children and her most recent research has focused on literacy attainment. She is the author of five books and many articles and is Editor-in-Chief of the British Journal of Developmental Psychology and an Associate Editor of the Journal of Deaf Studies and Deaf Education and Mind & Language. Margaret is a member of the DCAL Advisory Board and she is collaborating with Mairead MacSweeney on a project to develop a speech reading training programme.