"Optical Puzzles" is a fascinating collection of 270 visual conundrums to test your perception and boost your intelligence. Each illusion is accompanied by a solution or explanation that will shed light on the incredible interaction between your eyes and your brain.
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.