Great paintings cannot be fully understood in a single encounter; there is always more to be derived from them. Art lovers may revisit and reconsider the masterpieces throughout their lives, but a deeper understanding can only be gained by analysing the painting in detail, be it the placement of the subject, the lighting, the style of brushstrokes or the themes. 'Art in Detail' examines 100 iconic paintings from the Western canon and spotlights the finer points a quick glance will almost certainly fail to reveal.