Much about Grant Wood's patriotism and masculinity has been read into "American Gothic," with its pitchfork-holding farmer and his dour companion standing in front of an Eldon, Iowa farmhouse. R. Tripp Evans, an art historian at Wheaton College in Massachusetts, argues that even more has been misread, overshadowing Wood's rich and varied artistic career. This hour, IPR's Charity Nebbe speaks with Evans, author of the new book, "Grant Wood: A Life." (Knopf)