Guernica relates the powerful story of Picasso?s 1937 masterpiece, a painting that from its birth out of war and violence became known worldwide as a symbolic cry for peace. The acclaimed biographer of Gaud? traces the iconic painting?s beginnings amid the Spanish Civil War through its use as a weapon in the propaganda battle against Fascism, through the years when it became the nucleus of the Museum of Modern Art?s creation in New York, to its role as a symbol of reconciliation when it returned to Spain after the death of Franco, as democracy was reestablished.