The exhibition called "Drawing is Thinking" includes 180 works from the 50-year-long career of this American designer best known for the "I (heart) NY" logo.
Glaser's one-person shows have been staged at the Museum of Modern Art in New York, the Centre Georges Pompidou in Paris, the Lincoln Center Gallery in New York, the Houghton Gallery, the Cooper Union in New York, the Vicenza Museum, and the Galleria Comunale d’Arte Moderna in Bologna.
His exhibition in Zagreb is open until 6 February.
The organiser of the event is famous Croatian designer and artist Mirko Ilic.