Despite all those books she still couldn't cook!

"It is fair to inquire as to the reason for such a photograph in a book on close up photography. The answer lies in a consideration of the alternative methods available to produce such an image. A major plumbing job was too costly; severe dieting too unpleasant; use of a mannequin too artificial. Tet that is the [photographer's] hand. Solution:photograph the bathroom, photograph the hand; carefully cut out the hand from an appropriately sized print and past on print of bathroom. Then photograph the composite paste-up ..."

Lester Lefkowitz, The Manual of Close Up Photography, 1979.

Much easier today in photoshop.