The art world may appear glamorous, but deception often lies beneath the surface. After weapons and drugs, art is the third most lucrative illicit trade, with reports suggesting that more than half of artworks are fake or misattributed. In this course, we will ask: When is a copy simply a copy, and when is it a forgery? What techniques do master forgers use? What can science tell us about art authenticity? We will uncover riveting stories of criminal art activity and master forgeries.