Another popular choice for teens is Crayola’s Optical Illusions Coloring Book. It features 40 pages of black-and-white optical illusion designs that are mesmerizing to color. The color options ...

Illusions Pack Illusions BookThis Illusions Book brings 20 new images to Coloring Pixels! Each image is a different optical illusion to play with your eyes and mind!Get ready to take a second look ...