British artist Maggi Hambling is best known for her intimate portraits, paintings of the sea and controversial public sculptures. For being something of a non-conformist, she refuses to be pigeonholed. After half a century of challenging the art world, Maggi Hambling has a new exhibition at the British Museum. Entitled "Touch," the exhibition features 40 works, many of which have never been seen in public before. Primarily on paper and ranging from early pieces right through to some of her most recent works, the show reveals how drawing is at the heart of her artistic practice.