Marshall Vandruff has worked as an illustrator and teacher for nearly thirty years. His clients include MAD Magazine, Warner Brothers, Hanna-Barbera, Dark Horse Comics, Nickelodeon, Insomniac Games, Disneyland, LeapFrog, Rockstar, Blizzard Entertainment, AutoDesk, The Gnomon Workshop, ImagineFX, and over forty advertising agencies. He has taught over 200 drawing, anatomy, and storytelling courses at colleges, universities, and corporations in southern California.