To view, look at the two vertical lines at the bottom of the image and stare into the distance, so that the two lines merge. (It may take a while to do this!) You will then actually see three lines: a merged central line, and two lines on each side of it. When you've done this, your eyes are at the correct angle to view the background of the autostereogram. With care, you will be able to move your gaze around the whole picture, and you will see the three dimensional image in it. The picture here is a 'pyramid' made of five discs, coming out towards you (or away from you if you cross your eyes).