No bigger than a playing card, this pocket sized engraving by William Blake has captured our imagination for over two hundred years.

Centuries before space travel, what could be a more sensible way to reach the moon than a very long ladder!

As always with Blake, the child-like simplicity of the image can have many interpretations. For instance, who are the couple huddled in the corner and what do they represent?

Blake was a visionary and a dreamer and here he encapsulates all our impossible longings. A tiny treasure!