It might seem like the sitters and subjects of art history's greatest nude paintings have little left to show, but don't be fooled: there is more than meets the eye in these naked masterworks. Rose-Marie and Rainer Hagen guide us into the secrets of the flesh, coupling extended discussions with crisp, enlarged details of 12 iconic works from the canon of art history. Biblical tales of morality or modern portrayals of leisure, works such as Tintoretto's...