Fred Kline is a well-known art historian, dealer, connoisseur, and explorer who has made a career of scouring antique stores, estate sales, and auctions looking for unusual-and often misidentified-works of art. Many of the gems he has found are now in major museum collections like the Frick, the Getty, and the Metropolitan Museum of Art.

But this book is about the discovery of one piece in particular: About ten years ago, when Kline was routinely combing through a Christie's catalog, a beautiful little drawing caught his eye. Attributed to Carracci, it came with a very low estimate, but Kline's every instinct told him that the attribution was wrong. He placed a bid and the low asking price and bought the drawing outright. And that was the beginning of how Kline discovered Leonardo da Vinci's model drawing for the Infant Jesus and the Infant St. John.

It is the first work by da Vinci to have surfaced in over a century. Leonardo's Holy Child chronicles not only the story of this amazing discovery, from Kline's research all over the world to how exactly attributions work with regards to the old masters (most of their works are unsigned). Kline also sheds light on the idea of connoisseurship, an often-overlooked facet of art history that's almost Holmesian in its intricacy and specificity.