Edward de Bono's 'Six Thinking Hats' offers a framework for enhancing thinking by categorizing it into six distinct modes represented by colored hats. Each hat symbolizes a different aspect of thinking: the blue hat for control and process, the white hat for factual information, the black hat for risk assessment, the yellow hat for positive aspects, the green hat for creativity, and the red hat for emotions. The method encourages structured group discussions to explore various perspectives on a topic.