Scotland Yard recently conducted a private exhibition of forged paintings for art dealers. The objective was to send a warning to their select audience about the sale of forgeries, which some experts estimate make up 40 percent of the art market. The sale of these fakes can undermine the value of the genuine articles.

The forgeries at the exhibit were created with remarkable proficiency. Reliance on documentation alone won't solve the problem because even that is often forged! Fiona Ford, of the Association of Arts & Antiques Dealers, said the level of skill displayed by the forgers was "terrifying." She added, "If every dealer saw this exhibition, it would further impress on them how careful they have to be."