6. ACTION COMICS #485 (1978)

Neal Adams is one of the comic world's most important artists, and his portrayal of the strongest character in DC is nothing short of brilliant. While his work on Superman tends to get overshadowed by his work on Batman, his version of the Man of Steel has hardly been improved upon since its debut.

Adams’ intricate knowledge of human anatomy, as well as his ability to depict heroes as immensely powerful yet real, made this cover singularly iconic without letting readers have a clue as to what the issue was even about.