Sinem Sonsaat-Hegelheimer (M.A., Hacettepe University; PhD, Iowa State University), Assistant Professor, works on second language pronunciation teaching and learning, materials development and evaluation, and computer-assisted language learning. She has co-authored chapters in several books and published her research on various journals such as TESOL Quarterly, CATESOL Journal, and Speech Communication. She chaired the Speech Pronunciation and Listening Interest Section (SPLIS) of TESOL International Association between 2020-2021. She is the editorial assistant of Journal of Second Language Pronunciation since 2015, and she is the co-editor of “Second language pronunciation: Bridging the gap between research and teaching” (Wiley, 2022) with John Levis and Tracey Derwing.