" Crosseyed Puzzle " is 30 optical illusions that I invented over the years.
Therefore, I came up with the book " Crosseyed Puzzle "..
Instead, I could print the optical illusion on a plain paper and cross my eyes.
Then I noticed that I didn\'t have to focus my eyes through the picture to convert the Viking hat into a Bison.
Then came the next step of coming up with a non-abstract picture, which looked to me like a Viking hat.
This led me to the next step of drawing a face around the now two circles, which gave me the face of a bison.
It all started when I put a circle on a transparency and focused my eyes through the transparency paper until I saw two circles. " Crosseyed Puzzle " is 30 optical illusions that I invented over the years
