More than 135 puzzles, illusions, and activities in this four-color book, with answer key in the back. Features optical illusions, visual puzzles to challenge logic and spatial reasoning, and color-by-number illusions for readers to complete. Convenient spiral binding with colorful, appealing design throughout.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.