Lichtenstein owes his notoriety to works that refer to the world of comics. He didn't use mechanical techniques and his dots are really painted one by one. He was the opposite of the provocative and overflowing Andy Warhol and in fact he was the artist least inserted in the cultural environment of New York.
As the biography on the foundation's website entitled to him writes, "he was too reserved to get in touch with them. Where "they" refers to the main protagonists of art of that period. Despite his successes, the critics had for a long time a distrustful attitude towards Lichtenstein's art that many years after the first successes he claimed. "In the first paintings I was looking for the kind of cheap advertising that you can find in the yellow pages. They were a great source of inspiration for me".