Sharynne McLeod is professor of speech and language acquisition at Charles Sturt University, Australia. She is vice president of the International Clinical Linguistics and Phonetics Association, editor of the International Journal of Speech-Language Pathology and author of a number of books including the International Guide to Speech Acquisition.

Brian A. Goldstein is associate professor in the Department of Communication Sciences and Disorders at Temple University, USA. He currently serves on the editorial board of Clinical Linguistics and Phonetics and has previously served as Associate Editor and Editor of Language, Speech, and Hearing Services in Schools.