Henry Moore was one of the eminent modernist artists working in twentieth-century Britain. He achieved renown in both drawing and sculpture, using draughtsmanship to work through ideas for his sculpture. Ideas for Upright Internal/External Forms is a sheet from one of his sketchbooks. He often made compendia of studies around a single idea, setting himself narrow parameters – in this case an ‘upright form’, many of them hollowed out – and reiterating a single figure type in many different guises on one sheet. The effect is a bravura show of draughtsmanship redolent of Renaissance masters such as Donatello and Raphael, who also used drawings to ‘circle around’ a three-dimensional form in two dimensions. In Moore’s case, the hollowed-out figures are at once redolent of pregnant female bodies and the decimated corpses resulting from the struggle of war.