The highly anticipated portrait of three generations of the Sackler family, by the prize-winning, bestselling author of SAY NOTHING   The Sackler name adorns the walls of many storied institutions: Harvard, the Metropolitan Museum of Art, Oxford, the Louvre. They are one of the richest families in the world, known for their lavish donations to the arts and sciences. The source of the family fortune was vague, however, until it emerged that the Sacklers were responsible for ma