Sven Tarp is Professor of Lexicography at the Centre for Lexicography at the Aarhus School of Business, University of Aarhus in Denmark. He is the author and co-author of numerous publications on lexicography. He is the author of Lexicography in the borderland between knowledge and non-knowledge: General lexicographical theory with particular focus on learner's lexicography and co-author of several printed dictionaries as well as co-editor of the Manual of Specialised Lexicography.