Herwig C. H. Hofmann is Professor of European and Transnational Public Law at the University of Luxembourg. He has held visiting positions at various universities around the world, is the author of numerous books in the fields of EU and comparative public law, advises governments and EU institutions. Next to his academic work, he also represents cases before the CJEU, including the Schrems cases in 2015, 2018 and 2020