I recently visited the Leeds Art Gallery, as I heard about a surrealist exhibition that was taking place from August till November. I saw the work of Patrick Hughes and was dazzled by his grasp of perception and ways of manipulating it. I have looked further at his work online and have found some more pieces of work that were very interesting.
There is a mind boggling video clip at the top of the page above, it is of one of his pieces of work, which at first seems to be flat. However the secret to his deceit is then revealed at the piece is spun all the way round. His control and understanding over perception is endless, and there is a nice little description of the science of perspective on the website.