In order to see the hidden image you must learn to use a different 'look'. This can be very hard for some people to get used to as the eye muscles that are needed to make this look are very rarely used. However, most of as have done this look before. Have you ever caught yourself thinking of something and just staring at something random for a long time? This is it. This is the look you must learn to control and use it whenever you like.

Normally, when you want to see something your left and right eye focus on that object and give your brain the information which is then translated into a three-dimensional picture. The picture below illustrates this.

The stereogram hides a three-dimensional picture in a two-dimensional one. To decode the 3D information you must use one of the two methods described below.

The first and most popular method is called the parallel viewing method. In this case your eyes do not focus on the object you want to see (the stereogram) but behind it. See the next picture to understand what I am talking about.

In my opinion this is the easiest method for 3D viewing and you should try using this one. At least I do. However, there is one more method called the cross viewing. In this case, your eyes do not focus behind the image as in the parallel viewing, but in front of it. Again the image below illustrates this thinking.