Brain Games: Optical Illusions

Seeing is believing, right? Well, in the case of optical illusions, you might find it hard to believe what your eyes are telling you. Objects that seem to be different sizes are really identical; pictures move on the page; images that appear one way suddenly become something else altogether. Don't run off to the optometrist. This is all part of the fun and the mind sharpening powers you get when trying to solve the challenges in Brain Games: Optical Illusions.

The book presents more than 150 optical illusions divided into these four chapters:

• Nothing's As It Seems. Things sometimes are not what they seem to be.
• Hidden Within. Sharpen your focus searching for what's missing, hidden, and out of sight.
• Puzzling Perspectives. Hone your perception skills by deciphering tricky illusions.
• Colors and Motion. Shapes move, colors deceive, and you have to work hard to believe your eyes.

Optical illusions come in many forms. Here are a few you will find in Brain Games: Optical Illusions:

• Ebbinghaus Illusions, which deal with size perception.
• Muller-Lyer Illusions, which deal with perceived length.
• Ambigrams, which deal with how written language can be interpreted in more than one way.