Brain Games Mini - Optical Illusions (Spiral)
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Optical Illusions is a fun and unique way to get the mental exercise you need.
- Use observation and visual reasoning skills in order to unlock the tricks behind these illusions.
- A variety of different optical illusions, from tricks of perspective to perceived motion, are included to keep you entertained.
- Great size for travel: 7-1/8 x 5-1/2 x 7/8 inches.
- Answer key in the back of the book.
- Spiral bound, 256 pages