Marc’s primary research interest is in relations among language, learning, and development. His current work focuses on long-term relations of those factors among deaf children and adults as reflected in formal and informal educational settings. He currently is engaged in a four-year project examining relations among language and cognition among cochlear implant users (with New Mexico State University) and a three-year project exploring predictors of secondary and postsecondary academic outcomes (with SRI International). His research collaborations and consulting activities include deaf education partners in several countries. He edits the Journal of Deaf Studies and Deaf Education and co-edits the Perspectives on Deafness and Professional Perspectives on Deafness: Evidence and Applications series, published by Oxford University Press. His books include Raising and Educating a Deaf Child, Teaching Deaf Learners: Psychological and Developmental Foundations (with H. Knoors), and Bilingualism and bilingual deaf education (with G. Tang and H. Knoors). Coming in 2015 will be Educating deaf learners: Creating a global evidence base (with H. Knoors) and The Oxford handbook of deaf studies in language: Research, policy, and practice (with P.E. Spencer).