Adult Education Series was the umbrella title for three different CBS Radio educational programs, all under the supervision of Sterling Fisher. The first was Americans at Work, a 30-minute show heard on in the late evening on Thursdays, Saturdays and Tuesdays beginning April 28, 1938. By 1939, it was a successful component of the Thursday night CBS schedule with Brewster Morgan directing. The unscripted show used an interview format to cover diverse occupations, from working class individuals to such famed figures as Walt Disney. Many episodes were unscripted. It continued until April 23, 1940.