Julian Beever draws his pavement pictures with chalk and the drawings are gone after a short time. They are either washed away by rain or disappear from the wear of foot traffic.
Although his chalk sidewalk drawings are short lived, they are permanently preserved in photographs.
This chalk drawing is an illusion of a Sony Vaio laptop computer drawn on The Strand in London.
Beaver’s pavement drawings only work from one viewpoint otherwise the image appears strangely distorted.
The Julian Beever website is here.