Creative Problem Solving: Root Cause Analysis, 5 Whys, Feynman Technique and...

Creativity : The Psychology of Discovery and Invention Mihaly Csi

Everyday Problem Solving - Make learning Math Skills Exciting.

Creativity: Flow and the Psychology of Discovery and Invention - GOOD

Thinkertoys: A Handbook of Creative-Thinking Techniques (2nd Edition) - GOOD

Cracking Creativity: The Secrets of Creative Genius - Paperback - GOOD

Cracking Creativity: The Secrets of Creative Genius - Paperback - ACCEPTABLE

The art of creative thinking E - ACCEPTABLE