Morten H. Christiansen is the William R. Kenan, Jr. Professor of Psychology and Co-Director of the Cognitive Science Program at Cornell University as well as Professor in Cognitive Science of Language at the School of Communication and Culture and the Interacting Minds Centre at Aarhus University, Denmark, and Senior Scientist at the Haskins Labs. His research focuses on the interaction of biological and environmental constraints in the evolution, acquisition and processing of language. Christiansen is the author of over 220 scientiﬁc papers and has edited books on Connectionist Psycholinguistics, Language Evolution, Language Universals, and Cultural Evolution. His 2016 book Creating language: Integrating evolution, acquisition, and processing from MIT Press provides an overview of the work done in the CSL Lab. He is currently finishing up a “popular” book, The Language Game: How improvisations created language and changed the world, aimed at a general audience.