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    Thinkertoys: A Handbook of Creative-Thinking Techniques
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    Cracking Creativity: The Secrets of Creative Genius: The Secrets of Creative Genius for Business and Beyond
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    Cracking Creativity: The Secrets of Creative Genius: The Secrets of Creative Genius for Business and Beyond
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    Creative Thinkering: Putting Your Imagination to Work
    Creative Thinkering: Putting Your Imagination to Work
    from  Michael MichalkoUsed - very goodBook - Used - very good
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    Thinkertoys: A Handbook of Business Creativity: Handbook of Business Creativity for the 90's
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