Packed with color-and-solve illusions designed to trick your eyes, Brain Games® Optical Puzzles makes it fun to give your brain a stimulating workout. Testing how your brain's visual system processes shapes, colors, sizes, and dimension, each optical puzzle offers a unique, enjoyable way to get the mental exercise you need. Just a few eye-opening minutes a day may be all you need to help lower your brain age and stay sharp! Spiral-bound softcover, 60 pages. Puzzle book measures 10" x 8 1/2".
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