This illusion is based on a drawing by Albrecht Dürer. It is commonly known as The Praying Hands but is also known as Hands of the Apostle. The original drawing was a preparatory sketch, nearly five hundred years ago, for a painting on an altarpiece which was later destroyed in a fire. It was on blue paper, which is why we chose blue for the shawl.
The image is often seen in the form of an engraving which is why we chose copper colours for the wall-hanging.
The pattern has instructions for the shawl and wall-hanging.
When you look straight at the knitting you see stripes.