The paintings are very personal with a mischievous quality, bordering on the subversive. There is also the issue of the ‘code’ of colours often seen around the edge of his canvasses. These form a diary; a record of all the colours used to make the image and in the order they were made and used. For Piers, the edges of the picture are important, so is the geometry between the edge and the centre. The square is his most common format; primary red and blue form his initial drawing.