How To Have A Beautiful Mind
Six Frames: For Thinking About Information
Lateral Thinking: An Introduction
Non-Obvious 2017: How To Think Different, Curate Ideas and Predict The Future
Thinkertoys: A Handbook of Creative-Thinking Techniques
The Six Thinking Hats for Schools (TEACHING THINKING)
Liminal Thinking: Create the Change You Want by Changing the Way You Think
Lateral Thinking: Creativity Step by Step