Mind-Bending Challenging Optical Puzzles

This small, pocket size book is ideal for traveling in two ways. The first is the size; it easily fits into a pocket. Secondly, the puzzles can keep your mind occupied for some time. A few of the 41 puzzles are simply optical illusions, and if you are familiar with this genre, you will have seen them before. Most of the remaining puzzles require that you pick out the item that matches the criteria. As the title implies, nearly all of the puzzles are optical in nature, although a few ask for the number that best matches the given sequence. Solutions to most of the puzzles are found at the end if you get frustrated. This is a nice collection of Goldilocks puzzles, not too hard not too easy.