This book set includes five volume auction catalogs from 1988, featuring the iconic artist's mixed media art and collage art. The set is perfect for any art enthusiast or collector, and comes with a Certificate of Authenticity (COA) issued by Sotheby's. The pieces in this collection were produced in the United States and showcase Warhol's unique style and creativity. This book set is a must-have for anyone interested in auctioning or collecting art, and is sure to be a valuable addition to any collection. Don't miss out on this opportunity to own a piece of art history.