The Art of War: The monumental exhibition World War I and American Art is on view now at Pennsylvania Academy of the Fine Arts in Philadelphia. By James D. Balestrieri • Collecting with Purpose: A Seattle home displays one collector's appreciation for the outdoors, the West and classic American art. By John O'Hern • Previews of upcoming shows of historic American art at galleries across the country. • Previews and reports of all the major art fairs and events taking place across the country. • Insights from top curators about the major exhibitions of historic American art being organized at key American museums. • Major works coming up for sale at the most important auction houses dealing in historic American art.