His now globally recognisable, iconic cultural stamp, is reproduced on everything from coffee cups to t-shirts and tote-bags to hats. The logo today can be seen everywhere throughout New York City. Just as Robert Indiana’s work influenced Glaser, Glaser’s work has inspired others to create “I Heart” variations of the logo. The state of New York has filed nearly 3,000 objections against a wide range of copy-cat designs. When asked his thoughts on “I Heart NY” imitations, Glaser said: “I like them all… you do work because you want to affect the world. I did something that a lot of people were affected by.”
After the 9/11 attacks, the logo has become even more important, as a symbol of solidarity, creating unity in the city for the public to rally around. Glaser even designed a modified version saying, “I Heart New York More than Ever”, in response to the attacks. The red heart had a small blackened and burned area along the bottom left edge to symbolize the attack on the World Trade Centre.