Gianni, founder of Archimedes' Lab Project™ has written an extensive collection of books in several languages on brain training, critical thinking, visual art, and on the mechanism of vision.
Other puzzles by Gianni Sarcone
Sarcone
Gianni, founder of Archimedes' Lab Project™ has written an extensive collection of books in several languages on brain training, critical thinking, visual art, and on the mechanism of vision.