Percy Lee Crosby (December 8, 1891 – December 8, 1964) was an American author, illustrator and cartoonist best known for his comic strip Skippy. Adapted into movies, a novel and a radio show, Crosby's creation was commemorated on a 1997 U.S. Postal Service stamp. An inspiration for Charles Schulz's Peanuts, the strip is regarded by comics historian Maurice Horn as a "classic... which innovated a number of sophisticated and refined touches used later by Charles Schulz and Bill Watterson." Humorist Corey Ford, writing in Vanity Fair, praised the strip as "America's most important contribution to humor of the century".