Mark van Twist is professor of public administration at Erasmus University Rotterdam. He is also dean and member of the board of the Netherlands School of Public Administration, an interuniversity institute in The Hague, that offers study programs for senior officials in government. He is also extraordinary member of the board of the Netherlands Court of Audit. Mark van Twist studied Business Administration and Public Administration at the Erasmus University in Rotterdam and the University of Leiden. In 1989 he began working for the Department of Public Administration of Erasmus University, where he obtained his Ph.D. and became assistant professor. In 1994 he began working for the School of Systems Engineering, Policy Analysis and Management at the Delft University of Technology, first as associate professor and later as executive director of an interfaculty research institute. He was asked in 1999 by one of the leading consultancy firms in the Netherlands to become managing director and build up a new group, specializing in the management of complex projects. Two years later he accepted a chair on public private partnership in the Faculty of Management Sciences at Radboud University Nijmegen. Since 2009 he is back at the Erasmus University.