Earlier this month, my newest book entitled Exceptional Eye Tricks was released. The book features nine chapters of different categories of optical illusions with additional information about the illusions located in the back. One of these chapters is devoted to “motion illusions”. These types of illusions are static but appear to be moving (as if they were animated). As such, they tend to be very popular on the Internet. While the effect is noticeably better when viewed on a computer monitor, they also work well in print.
The cover of this book features a great example of a motion illusion created by Chilean artist Fiestoforo. The green dots in the pattern appear to swirl in a clockwise direction over a purple background.