Before penning great American novels like Green Eggs & Ham, The Lorax, & Oh, The Places You’ll Go, Theodore Seuss Geisel, better known as Dr. Seuss, worked as ad agency illustrator drawing print ads. Read more about his ads and see a collection of them here, ranging from 1927 through the 1940’s.

I love that his all of his ads, even for Schaefer’s Bock Beer, printed in 1937, has that classic, silly Dr. Seuss feel.