One of his paintings is in the permanent collection of the National Portrait Gallery in Washington DC.
He was drafted into the Army in 1959, where he was a medical illustrator and producer of animated training films.
After art school, he worked in television as an assistant art director, and produced animation and filmstrips.
He created illustrations for science-fiction paperback and magazine covers, as well as the first "Star Wars" movie poster. He also made accurate animal illustrations for National Geographic magazine.
In the early days of video games, he was hired to create the packaging for a new game. He was offered the choice of a flat fee or a percentage of the game's profits. He took the flat fee. The game was "Doom", a major best-seller.