Etiënne A. J. A. Rouwette is a professor of research and intervention methodology at the Nijmegen School of Management at Radboud University, the Netherlands. He received his PhD from Utrecht University. His research focuses on cognition and communication in group decision support, applying facilitated modelling in domains such as healthcare, sustainability, and security, among others.

L. Alberto Franco is a professor of decision sciences at the University of Bristol Business School, UK. He received his PhD from the London School of Economics and Political Science. His main research interests are centred on the study of group decision support practice, with special attention to evaluating how cognition and behaviour affect, and are affected by, the use of decision aids and facilitated processes.

Part I. Are more heads better than one? Chapter 1. Decision making traps Chapter 2. Motivated team decision making Chapter 3. Interventions to support team decisions Part II. An overview of selected interventions Chapter 4. Group model building: Understanding complex behaviour Chapter 5. Application: Building the business model of Sioo management education Chapter 6. Participatory scenario development: Thinking about the future Chapter 7. Application: Understanding possible futures of Nijmegen municipality Chapter 8. Group causal mapping: Clarifying issues, understanding purpose and developing options Chapter 9. Application: Prioritising projects to tackle teenage pregnancies in a multi-cultural neighbourhood (part I) Chapter 10. Decision conferencing: Articulating value preferences and trade-offs Chapter 11. Application: Prioritising projects to tackle teenage pregnancies in a multi-cultural neighbourhood (part II) Part III. Performing interventions Chapter 12. Design choices Chapter 13. Basics of facilitation Chapter 14. Managing process and content Chapter 15. Managing conflict and emotion Part IV. Researching interventions Chapter 16. Are interventions used in practice and do they really work? Chapter 17. Building skills for the study and practice of interventions