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SAT® Question of the Day
• Ph.D. from MIT
• University of California Professor since 1983
• Over 70 professional publications

• Three books, including Visual Intelligence
Who’s Who Among America’s Teacher’s
Who’s Who in America and World

Troland Award of US National Academy of Sciences
Visual Exhibit for the Smithsonian
Distinguished Scientific Award of APA
There is no blue square on the left, only blue arcs of
circles. You create the blue square that you see. For more
on this illusion, see Visual Intelligence.
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