Both philosophical pragmatism and institutional innovation rest on wide international uses in social sciences and planning studies, and may be considered as complementary for many reasons. However, the combination of these different approaches is all but evident and creates a number of dilemmas. After an encompassing introductory section entitled Institutions in Action, the handbook is further divided into the following sections:
Willem Salet is professor emeritus of urban and regional planning at the Faculty of Social and Behavioral Sciences, University of Amsterdam, the Netherlands. He chaired the group Urban Planning until 2017. He was the scientific director of the Amsterdam Study Center for the Metropolitan Environment (AME) 2008-2013. He was the president of the Association of European Schools of Planning (AESOP) 2008-2010 and was awarded an honorary membership of AESOP in 2016.