Gianni A. Sarcone
Gianni A. Sarcone is a visual artist and an author of columns and articles for newspapers and magazines featuring visual puzzles and mathematical brain teasers. He is a contributing editor to Focus Junior , Rivista Magia , Alice amp Bob Bocconi University , Brain Games , and Tangente Magazine . Sarcone is also a designer and a researcher with more than thirty years of experience in the fields of visual creativity, recreational mathematics and educational games.
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Source: Wikipedia