Erik Hollnagel (Ph.D., psychology) is Professor at the Department of Public Health, University of Southern Denmark, Industrial Safety Chair at MINES Paris-Tech (France), Professor Emeritus at University of Linköping (Sweden), and Visiting Fellow of the Institute for Advanced Study of the Technische Universität München (Germany). Since 1971 he has worked within universities, research centres and industries in several countries facing problems from several domains, including nuclear power generation, aerospace and aviation, air traffic management, software engineering, healthcare, and land-based traffic. His professional interests include industrial safety, resilience engineering, accident investigation, cognitive systems engineering and cognitive ergonomics. He has published more than 250 papers and authored or edited 18 books, some of the most recent titles being The ETTO Principle (Ashgate, 2009) and Resilience Engineering in Practice (Ashgate, 2011). Erik Hollnagel is also Editor-in-Chief of the book series Ashgate Studies in Resilience Engineering.