Jacqueline Bauman-Waengler, PhD, CCC-SLP, has been a university professor and most recently a speech-language clinician in the public schools. Her main teaching and clinical emphases are phonetics/phonology and speech sound disorders in children. She has published and presented widely in these areas both nationally and internationally. Her textbook Articulation and Phonology in Speech Sound Disorders (Pearson, 2020) is presently being edited for its sixth edition. In addition, she has published Introduction to Phonetics and Phonology: From Concepts to Transcription (2009) with Pearson.