After gaining work experience in advertising agencies for the automobile industry, English and his family moved to Connecticut in 1964.
He began an illustrious career, working with publications such as TIME Magazine and Sports Illustrated among others in the corporate, pharmaceutical, music and postage industry.
In 1977, Hallmark Cards offered Mark an Artist-in-Residency to teach classes to its creative staff in Kansas City.
[2] The same year, English and his son John co-founded the Illustration Academy, an art and design workshop catering to students and professionals.
[3] In painting, English showcases his style in a variety of subjects, from figures, animals and florals to landscape and architecture.