New research by the Metropolitan Museum of Art suggests that Johannes Vermeer may have hidden a self-portrait beneath his painting *A Maid Asleep* (1656–57). Using scientific analysis, the Met's team discovered an overpainted figure in the background—a man painting with his left hand, likely a reflection in a framed mirror. The image is too obscured to reveal facial features. The theory, first proposed by the Met in 2023, is bolstered by a comparison to Nicolaes Maes's *The Naughty Drummer* (1655), which similarly depicts an artist reflected in a mirror. The Met argues Vermeer likely knew Maes's work.
This discovery matters because it could reshape understanding of Vermeer's self-representation and working methods. If confirmed, it would be one of the few known self-portraits by the elusive Dutch master, offering rare insight into his studio practice. It also raises questions about the painting's subject: the woman at the table, long thought to be a maid, may actually be the artist's model, given her pearl earrings and red dress—details inconsistent with a servant's attire. The finding underscores the value of technical analysis in art historical research.