Six Thinking Hats, Made Practical

Parallel thinking as an alternative to adversarial debate

How does the six thinking hats method improve decision-making and group thinking?

Edward de Bono’s Six Thinking Hats assigns six distinct thinking modes — facts, emotions, risks, optimism, creativity, and process — to six metaphorical colored hats, so that everyone in a group (or a single thinker) focuses on one mode at a time rather than arguing from mixed positions. Evidence for the specific technique comes largely from organizational case studies; the underlying principle of parallel versus adversarial thinking has support in group cognition research.

Most meetings fail because people are thinking in different modes simultaneously: one person is presenting data, another is feeling anxious, a third is already lobbying for their preferred solution. Edward de Bono’s Six Thinking Hats (1985) addresses this by making thinking modes explicit and parallel: everyone wears the same metaphorical hat at the same time, so the group’s attention is unified rather than fragmented. The method’s primary value is not the colors but the discipline of separating thinking modes that normally collide.