Backbreaking labour is depicted in Millet's Man with a Hoe, the last of his most controversial peasant paintings which have subsequently been labelled as 'socialist' by a variety of writers. It sits among The Sower, which Robert Hughes referred to as 'the Mona Lisa of socialism', alongside The Gleaners and The Angelus all by the same artist, and some of which will be making an appearance at the upcoming National Gallery exhibition in London. At first glance, this sizeable canvas appears relatively simple in composition - an isolated figure against an earthy palette and limited grey sky, pushed to the very limits of human effort, whilst others labour in the background, secondary to the torturous scene in front of the viewer. Meanings range from political commentary, referencing the age of mass production in the mid nineteenth century, the growth of modern farming techniques and negation of the rural worker, to symbolic suggestions of the Man as a hero for the working...