Six thinking hats

Eitemau Tebyg

• Cracking creativity: the secrets of creative genius
  gan: Michalko, Michael
  Cyhoeddwyd: (2001)
• Thinkertoys: a handbook of creative thinking techniques
  gan: Michalko, Michael
  Cyhoeddwyd: (2006)
• Creativity workout: 62 exercises to unlock your most creative ideas
  gan: Bono, Edward de
  Cyhoeddwyd: (2008)
• A whack on the side of the head: how you can be more creative
  gan: Oech, Roger von
  Cyhoeddwyd: (1983)
• Lateral thinking: creativity step by step
  gan: Bono, Edward de
  Cyhoeddwyd: (1990)