Her research and clinical work focuses on language and literacy development in children who use aided communication and children with Speech Sound Disorders, as well as the language and communication experiences of children and adults who use AAC. She has published widely on the communication, language and literacy challenges facing children and adults who use aided communication, including her book Literacy and Augmentative and Alternative Communication. She is a Past President of the International Society for Augmentative and Alternative Communication and a Fellow of Trinity College Dublin.