Julian Beever is an English artist known worldwide for his amazing trompe-lâ€™oeil on the street. He uses a technique named anamorphosis : he draws deformed works on the ground but which create an amazingly realistic 3D illusion when viewed from a specific angle. From this angle, the proportions of the drawing are correct too. This artist has made creations on a lot of countries all around the world and he has just released this year a book where he explains his techniques. You can see more creations on his website.