He graduated from the Otis/Parsons Institute of Art in Los Angeles with a BFA in Illustration.
He illustrated the covers to several Shadowrun books, including DNA/DOA (1990), Queen Euphoria (1990), and Bottled Demon (1990).
[1]: 280 Zeleznik is also the designer and artist for the science fiction/superhero Skraypers setting for Rifts and Heroes Unlimited.
Some of his RPG credits include Beyond the Supernatural, Systems Failure, Nightbane, and Macross II.
[4][5] He contributed illustrations to the 2007 Hollywood Zombies trading card series.