Midwestern poet and author Carl Sandburg gave readings of poetry, selections from his children’s book Rootabaga Stories (1922) and songs with guitar accompaniment, under the auspices of the Cooperative Book Shop. His Abraham Lincoln: The Prairie Years (1926), conceived as a work for children, grew into a very successful two-volume illustrated study of Lincoln for adults.  Its two-volume successor, Abraham Lincoln: The War Years (1940) won Sandburg is first Pulitzer Prize.