"More than meets the eye."
Gonna try my hand at making dem 3-D pics.
How to view stereograms :
Normal viewing requires the eyes to focus at only one point on a picture. Stereogram viewing however, is different. It requires the eyes to be unfocused and looking straight forward, focusing beyond the picture you are viewing.
Place the picture in front of you and relax your eyes, focusing into the distance (or to infinity). The picture in front of you should look blurred. However, as you focus your eyes further and further behind the picture, you would start to notice the two blurry images start to come closer and closer together. Keep focusing your eyes further and further away until the two blurry images come together at the center. Hold your focus there when this occurs and you should see the image as a 3-D picture!