Nancy Anderson, curator, American and British paintings, National Gallery of Art, and Charles Brock, associate curator, American and British paintings, National Gallery of Art. Distinguished by a rigorous focus on leading artists from the first generation of American modernists, the Shein Collection is one of the nation's foremost private collections of works from this movement. Curators Nancy Anderson and Charlie Brock discuss the importance of these artists in the development of modernism in the United States and Europe during the 20th century, on the occasion of the exhibition American Modernism: The Shein Collection.