He received a bachelor's degree from the Cleveland Institute of Art followed by an MFA in painting and printmaking from Carnegie Mellon University in Pittsburgh in 1959.
[5] While allowing for individual ideological differences, they group members rejected "the artist’s political protests as utterly irrelevant".
[6] In 1965, Mieczkowski's work was included in Responsive Eye, an exhibition at The Museum of Modern Art in New York which helped promote op-art as a distinct movement.
Fellow artists associated with the Cleveland art scene, including Julian Stanczak and Richard Anuszkiewicz, also participated in the 1965 show.
[7] According to the American art historian Edward B. Henning, Mieczkowski's approach to painting is reminiscent of Paul Cézanne's work, particularly in regard to the artist's "synthesis of painterly qualities and structural order".