Andy Warhol has been the subject of numerous retrospective exhibitions, books, and feature and documentary films. The Andy Warhol Museum in his native city of Pittsburgh, which holds an extensive permanent collection of art and archives, is the largest museum in the United States dedicated to a single artist. Many of his creations are very collectible and highly valuable.
Warhol liked making prints because it meant he could create multiples of the same image. Screen-printing is a printing process that can create lots of artworks that look the same.
Sometimes Warhol would switch colours around and present a group of prints with contrasting colours together.