Andrew Loomis

[2] After military service in World War I, Loomis worked for a couple of advertising agencies before opening his own studio in downtown Chicago in 1922.

[3] From that time until the late 1930s Loomis produced advertising paintings for many large companies such as Coca-Cola, Studebaker, Palmolive, Quaker Oats, Munsingwear,[3] and Kellogg's.

Herdlinger was one of three women chemists working regularly with Forrest Mars Sr. on the development of the new candy bar.

[8] Many of the books exhibit his own personally crafted techniques – such as the "ball and plane" method of head drawing – guided by Loomis's humorous dialogue.

Loomis died in 1959, but his final book, The Eye of the Painter and the Elements of Beauty (1961), was printed posthumously.