101 hypnotic op-art designs for hours and hours of coloring. Tailored for the hobbyist who wants more images to pick from, this advanced coloring book features over one hundred designs ready to color Just the right balance of bold elegance and challenging detail. Suitable for a variety of ages.

• A fun and relaxing pastime.
• Expressive bold and varied outlines.
• Page after page illustrations.
• Pages printed one side.