Create mind-bending masterpieces with Crayola Art with Edge Optical Illusions Coloring Pages. This set includes 40 unique coloring sheets, each featuring a complex, abstract design. Loose pages make it easy to keep your artwork flat and free of rips or tears. Black-and-white line art is designed to be creatively stimulating for artists of all ages, and is great for helping tune out distractions and inspiring artistic focus. Fill in the whole page, or leave white space for a dramatic effect!