David McCullough has twice received the Pulitzer Prize, for Truman and John Adams, and twice received the National Book Award, for The Path Between The Seas and Mornings on Horseback. His other acclaimed books are 1776, Brave Companions, The Great Bridge, and The Johnstown Flood. He is the recipient of numerous honors and awards, including the Presidential Medal of Freedom, the nation's highest civilian award.

In an exclusive excerpt from David McCullough’s new book, the story of how John Singer Sargent’s obsession with a woman led to the famous painting Madame X—and the scandal it caused in Paris.