Also known as 3D Stereograms, each of the strange myriad patterns has an incredible 3D image hidden inside. They are not always easy to see as you must relax & defocus your eyes before the image appears
- various techniques for achieving this state are described in the book. A few people can never see them, but most can learn & with practice see them faster & clearer, the results are always startling, fascinating & quite unlike any other visual effect. There are over 60 Eye Tricks in total with solution sheets in the back showing the hidden image you are looking for.