Simon Doonan window-dressed Barneys for decades. Now, he has some advice for creatives

For decades, Barneys department store was a microcosm of what was cool about New York City. Its retail and window designs were uniquely improvisational and artistic, offering creative ingenuity and intrigue you wouldn’t see in stuffy uptown shops. Those stores sold more austere takes on aspirational buying. Barneys also had fashion that shoppers couldn’t find anywhere else, due to exclusives with designers like Prada and Dries Van Noten. Located downtown among the city’s artists,...