Used with well-defined and explicit Return On Investment success in corporations worldwide, Six Thinking Hats is a simple, effective parallel thinking process . Six Thinking Hats is a system designed by Edward de Bono which describes a tool for group discussion and individual thinking involving six colored hats. Use Edward de Bono's Six Thinking Hats approach to improve your decision making, by looking at the decision from a range of different perspectives. Learn how to use the Six Thinking Hats by Edward De Bono to look at a problem from different perspectives and make the right decision. Read more. Once they know how. That's where Dr. Edward de Bono's Six Thinking Hats® comes in. This systematic method of thinking in a completely new and different way . De Bono's Six Hats. Six Thinking Hats is a parallel thinking process that helps students and groups to focus more productively on problems and issues. Dr. Edward de Bono. ▫ Traditional Thinking. ▫ What is Parallel Thinking? ▫ Traditional Thinking vs. Parallel Thinking. ▫ What is Lateral Thinking? ▫ Introduction .