One impression that I got from the article, which I thought was helpful, is that Johns's work serves as a transition or bridge between the Abstract Expressionists like de Kooning and Rothko and the more modern figures like Andy Warhol.
The Wikipedia article on abstract expressionism actually comes right out and says as much. So I'd start there, if you want some contextual background.
The Wikipedia article on abstract expressionism actually comes right out and says as much. So I'd start there, if you want some contextual background.