Ultimate Eye Twisters is a bumper collection of crazy and mesmerizing optical illusions and visual puzzles. It contains hours of eye-boggling, mind-twisting fun

Presents examples of optical illusions and discusses how they happen by looking at how the brain and the eyes work together.

Gianni Sarcone offers an approachable how-to for graphic designers, teachers, and artists who want to explore illusions that are distorted in size or create the

Ambigrams are words that are written or drawn so that they can be read in more than one way, back to front, upside down, turned this way and that.

This Little Golden Book collection of Sesame Street-themed tongue twisters will have girls and boys ages 4 to 7 tee-heeing as they try to say these ridiculously