He is most notable as the founder of the Landon School of Illustration and Cartooning, a mail-order correspondence course that trained a generation of leading syndicated cartoonists in drawing for publication.
Counted among Landon's most successful students were Carl Barks, Merrill Blosser, Gene Byrnes, Milton Caniff, Jack Cole, Roy Crane, V.T.
Their names were displayed in Landon's magazine advertisements which touted the accomplishments and high earnings of "former students who are now successful comic strip artists.
In the case of Ethel Hays, Landon taught her by mail, subsequently hired her as a staff artist for The Cleveland Press, then brought her to NEA to draw syndicated features.
[4] It was reviewed by Erick Trickey for Cleveland Magazine: On completion of the correspondence course, students received a small booklet with tips on finding work called How to Market Your Ability.