The Triad Optical Illusions Coloring Book (Dover Design Coloring Books)

By Harry Turner

For coloring book fans partial to optical brain-teasers -- 29 triad designs that play tricks with your eyes. The versatile design modules include small triads inside larger ones, triads with holes in... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 0486448614
• ISBN13: 9780486448619
• Release Date: March 2006
• Publisher: Dover Publications
• Length: 32 Pages
• Weight: 0.25 lbs.
• Dimensions: 10.8" x 0.3" x 8.0"
• Age Range: 8 to 14 years
• Grade Range: Grades 3 to 9