Optical illusions are fun to examine, but making your own brings the fascination to a new level. If that sounds like something you'd enjoy, you'll love this video that's been shared on YouTube – it's one of the most satisfying optical illusions we've seen.
Originally shared by mi.profe.fidelito, the video shows exactly how to create an anamorphic optical illusion by drawing lines onto a grid – and it'll take you under a minute to complete (anamorphic is a kind of glasses-free 3D effect). Learning this will bring your doodles up a gear. All you need is some graph paper, a pen and pencil – and some time to practice
