Designs for Coloring: Optical Art by Ruth Heller buy used Used & Rare price $6.74 new from$8.50 shop with confidence SPECIAL SHIPPING CONSIDERATIONS FOR USED & RARE ITEMS. Please see the special considerations for shipping Used & Rare items, including extended delivery times, possible import duties & taxes. Delivered in 3-5 weeks Format: PAPERBACK Publisher: Grosset & Dunlap Condition: The following ISBNs are associated with this title: ISBN - 10:0448031434 ISBN - 13:9780448031439 Seller Comments: 0448031434 Item in good condition and ready to ship! From the Publisher The complex and labyrinthine patterns in this collection of optical art designs will entertain coloring fans and maze enthusiasts for hours on end. Printed on top-quality paper suitable for framing, they can be colored with crayons, felt-tipped pens, watercolors, pencils, or pastels.