|  |  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 which while coloring them at the same time. 32 designs.
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 Dazzling Designs
by Koichi Sato
Thirty ingeniously constructed designs consist of wonderfully intricate interlocking shapes that form eye-popping optical illusions. You'll discover endless opportunities for imaginative and inventive coloring!
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| |  3-D Designs
by Wil Stegenga
Striking patterns of closely interwoven squares, stars, and rectangles and flowing interlacements of circles, ovals, hearts, and other rounded shapes. Great for puzzle enthusiasts as well as designers. 30 black-and-white line illustrations.
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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.
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