Stereogram Poster with a hidden 3D picture showing wolves couple enjoying their time on a cliff. One wolf is standing and howling, and another one is sitting and admiring him. Stylized using intricate winter theme pattern with snowy trees and mountains. A stereogram is not just an ordinary poster—it's a mesmerizing 3D optical illusion. At first glance, you'll see a repeating pattern that resembles wallpaper. However, hidden within this design is a vivid 3D scene waiting to be discovered. To unveil the magic, all you need is a special viewing technique known as "see-through." By looking through the poster, the hidden 3D image, crafted from the same pattern, will reveal itself. For viewing instructions, please visit hide3d.com/how