Feiffer, a New York native, cut his teeth as an aspiring illustrator at the Art Students League and Pratt Institute in New York City. Some of his early work included drawing "Clifford," a Sunday ...

Some of his early work included drawing "Clifford," a Sunday cartoon-page feature, from 1949 to 1951. Even while serving a two-year stint in the U.S. Army, Feiffer did animation for the Signal Corps.