publications


Video / audio

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Thinking in colors – on video

Five ways to deal with change

Léon de Caluwé, Hans Vermaak – Twynstra Gudde/Alcatel, 2008
Introduction into five different 'worlds' of change

Léon de Caluwé and Hans Vermaak present briefly five fundamentally different ways of thinking about change. Each of these represents a different belief system and conviction about how change works, the kind of interventions that are effective, how to change people, etc. They are labeled by color: yellow, blue, red, green, and white print thinking. Their color-model is based on their observations of current practices and existing theories about change. Read more…

The color test for change agents

How do you think about change?

Léon de Caluwé, Hans Vermaak – Twynstra Gudde, 2001
Assess your style preference

This is an interactive test that helps you identify your convictions about change. The test results can be used to assess what type of change agent you are: what you are good at and what could be developed further. Read more…