Stephen John Ditko (; November 2, 1927 – June 29, 2018) was an American comic book writer best known for being the co-creator of Marvel superhero Spider-Man and creator of Doctor Strange. He also made notable contributions to the character of Iron Man, introducing the character's red and yellow design. Ditko studied under Batman artist Jerry Robinson at the Cartoonist and Illustrators School in New York City. He began his professional career in 1953, working in the studio of Joe Simon and Jack Kirby, beginning as an inker and coming under the influence of artist Mort Meskin.
https://en.wikipedia.org/wiki/Steve_Ditko