|  |  Visual Illusions Coloring Book
by Spyros Horemis
Beware, the designs herein may boggle your mind and confound your eyes. Does the cube go in or out, is the line straight or curved? You'll have fun deciding while coloring them at the same time. 32 designs.
all books in Standard Coloring Books
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| |  Geoscapes
by Hop David
This riot of geometric images offers a kaleidoscope of coloring possibilities! Dodecahedrons, fractals, spirals, and other mind-bending shapes merge, recede, and explode to create an eye-opening collection of 30 ultra-complex illustrations.
all books in Standard Coloring Books
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| |  Pinwheel Designs
by Wil Stegenga
It's easy to create brilliant kaleidoscopes of color! Thirty spinning, streaming pinwheel designs offer an explosion of eye-catching shapes that literally leap off the page. Each unique illustration offers endless opportunities for customized coloring.
all books in Standard Coloring Books
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| |  Puzzling Optical Illusions
by Thomas Crawford
A rich assortment of visual mind-bogglers, including "impossible objects" — constructions that look fine on paper but can't possibly exist in reality — as well as pulsating patterns, vanishing spots, more. 60 illustrations.
all books in Game & Puzzles Series
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