Patti Spinner is Associate Professor at Michigan State University. Her work focuses on the acquisition of grammar by second language learners. She has published numerous articles in journals such as Studies in Second Language Acquisition, Language Learning, Linguistic Approaches to Bilingualism, Applied Linguistics, and more.
Susan M. Gass is University Distinguished Professor at Michigan State University. She has published widely in the field of Second Language Acquisition, including the textbook Second Language Acquisition: An Introductory Course (Routledge), co-authored with Jennifer Behney and Luke Plonsky. She co-edits (with Alison Mackey) the Routledge series on Second Language Acquisition Research.