Which American artist is known for his 323 cover illustrations for 'The Saturday Evening Post', including the 'Four Freedoms' series?

Norman Rockwell

Norman Rockwell spent 47 years illustrating for 'The Saturday Evening Post', becoming a definitive chronicler of American life and culture. His 'Four Freedoms' series was inspired by a 1941 speech by Franklin D. Roosevelt and helped raise over $130 million for the war effort through a national touring exhibition.