This title looks at 75 individuals whose greatest achievements occurred or were recognized later in life. The people profiled come from different countries and diverse social backgrounds. Their varied areas of achievement include the fields of science, philosophy, business, art, music, popular entertainment and humanitarian pursuits. Some, such as Harry Truman and Raymond Kroc (the founder of McDonalds), changed careers late in life. Others such as botanist George Washington Carver, worked for years in a chosen profession, finding recognition only later. Some made remarkable comebacks such as film director Luis Bunuel who worked in relative obscurity until his sixties when his movies received international acclaim.