Pratt's cover for Legends of the Dark Knight #2 (DC, Dec. 1989).
Pratt's first published comics work was for Marvel Comics' Epic Illustrated #20 (1983). Since then, his work has appeared in Heavy Metal, Eagle, and many other publications. He has also inked other artists' work and created painted covers for DC Comics.
In 1990, DC published Pratt's first graphic novel, Enemy Ace: War Idyll, which was nominated for both the Eisner Award and the Harvey Award. Enemy Ace: War Idyll has been translated into nine languages and at one point was on the required reading list at West Point.[1] The book won the France Info Award for Best Foreign Language Graphic Novel, and the British Speakeasy Award for Best Foreign Language Graphic Novel.
Pratt's painted graphic novel Batman: Harvest Breed (DC) was nominated for two Eisner Awards.[citation needed]
As of the late 2000s, Pratt is working on the book See You in Hell, Blind Boy: A Tales of the Blues, based on his research of the Mississippi Delta. With Steven Budlong and James McGillion, Pratt made a documentary film about his Mississippi travels, also called See You in Hell, Blind Boy. The film won Best Feature Documentary at the 1999 New York International Independent Film & Video Festival.[citation needed]
Pratt has exhibited his work many times at the Society of Illustrators, and is featured in the Society's compendium The Illustrator In America: 1860-2000 (written by Walter Reed).