For this special issue, however, Leibovitz has selected images from what she calls her "Master Set." Many are well known, but not all. Many feature public personalities shot for magazines, but others are highly intimate and deeply private. A few, such as her 1968 image of soldiers at Clark Air Base, made at age 19 with the first camera she ever owned, are of historical interest. All of the images, says Leibovitz, capture some essential aspect of her photography. The Master Set is this remarkable photographer's own articulation of vision-of what makes an Annie picture an Annie picture.