These people figured out some way of doing an incredibly distorted drawing so that when they stood a reflective cylinder (cylinder mirror) in the middle of it, the reflection showed the picture as intended. One of these is of Mission San Rafael, the exact view you’d see if I tilted my Nikon digital camera up - Escher portrait lyes inside this photo. Don’t forget that other photos are inside of this post. Just click on the title to go inside. This image below is Istvan Orovitz’s Anamorphic Art. It is called Jules Verne’s Mysterious Island. At first glance, the image looks like a shipwreck on a weird-looking island. When a cylinder is put on the print, the reflection looks like Jules Verne!