Thinking outside of the bo

Posted by Phyllis Eisenstadt on December 19, 2003

In Reply to: Thinking outside of the bo posted by Phyllis Eisenstadt on December 17, 2003

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: Who coined the phrase "thinking outside of the box" and when was it first used?

Thanks to all of you for your input. The consensus is clear as to the meaning of the phrase, but what I need to know is WHO originally coined the phrase and WHEN it was first used.