publications
A selection of English publications is included here. Most are freely available.
Filter by subject area or search by keyword. For a complete overview, download the publication list.
genre
For me, change starts with change agents: people who have the will and do the work to make a difference. These publications look at their role and development from different angles.
Podcasts about the patchwork perspective
NotebookLM based on Hans Vermaak, 2026
Video / audio · change · change agents · complex issues · patchwork · systems thinking
The colors of change – revisited
Hans Vermaak, Léon de Caluwé
Contributions to books · change · change agents · colors of change · complex issues
Facilitating local ownership through paradoxical interventions
Hans Vermaak – Journal of Applied Behavioral Science, 2012
My articles · change · change agents · complex issues · helping & learning
The color test for change agents
Léon de Caluwé, Hans Vermaak – Twynstra Gudde, 2001
My articles · Video / audio · change agents · colors of change
Learning to change
Léon de Caluwé, Hans Vermaak - Sage, 2003
My books · change · change agents · colors of change
Democratization of change management
Interview by Hermsen, Millenaar, Van der Veer & Van Vliet (2024/2018)
Interviews and reviews · change · change agents · helping & learning
Knowing yourself as a change agent
Léon de Caluwé, Hans Vermaak
Contributions to books · change agents · colors of change · helping & learning
A springboard for further learning
Hans Vermaak
Contributions to books · change agents · helping & learning · research
Book summary ‘Enjoying tough issues’
Hans Vermaak, Kluwer 2009
My books · change · change agents · complex issues · helping & learning · managing professionals · research