Ingo Plag is Professor of English Linguistics at Heinrich-Heine-Universität Düsseldorf. He has published extensively in various linguistics journals, is editor-in-chief of the journal Morphology and is a member of the editorial board of a number of international journals including English Language and Linguistics, the Journal of English Linguistics, the Journal of Pidgin and Creole Languages, The Mental Lexicon and Zeitschrift für Sprachwissenschaft. His most recent books are Introduction to English Linguistics (2015), The Oxford Reference Guide to English Morphology (2013), and Word Knowledge and Word Usage: A Cross-disciplinary Guide to the Mental Lexicon (forthcoming).