[citation needed] Newgarden's work has appeared in a diverse array of venues, from the pivotal avant-garde comics album RAW to the New York Times op-ed page.
[citation needed] Newgarden has worked on various TV, film, and multimedia projects over the years for Nickelodeon, the Cartoon Network, Microsoft, Packard Bell, and others.
[citation needed] Newgarden attended New York's School of Visual Arts in the late 1970s/early 1980s, graduating in 1982, where his classmates included fellow cartoonists/illustrators Drew Friedman and Kaz.
Newgarden was part of the team that created the Garbage Pail Kids, and worked on new editions of Wacky Packages as well as scores of other satiric and novelty products.
His picture history of the practical joke and novelty industry, Cheap Laffs, was published by Harry N. Abrams in 2004; and We All Die Alone, a monograph collection of his comics and stories, was released from Fantagraphics Books in 2006.