Tonnie van der Zouwen is a professor for Sustainable Working and Organising at Avans University of Applied Sciences in the Netherlands and also works as an independent organisational consultant. Her work focuses on developing change capacities in organisations and networks. Her PhD research resulted in a framework for effective use of Large Scale Interventions, an approach used for creating sustainable change with the whole system of stakeholders. Tonnie holds master degrees in Environmental Biology and in Change Management. She is co-owner of COS Collective and deputy editor in chief of the COS-Journal. For further information see www.tonnievanderzouwen.com