Childhood is a time of imagination, learning, dreams, innocence and fantasy. The representation of childhood in history of art begins with the nativities, cherubs and cupids, the children of the aristocracy, and in modern times artists have taken up the codes of children's graphic creations. Pablo Picassso said: ‘When I was their age, I drew like Raphael, but it took me a lifetime to learn to draw like them.' Our selection this week is an ode to childhood and wonderland. Sweet child o'mine, Sweet love of mine...