New York magazine's fashion-on-the-street feature, the Look Book, set up shop around the corner from our office today. Who was Amy Larocca, the arbiter of taste, destroyer of men and maker of heroes? We wanted to know. Finding her was easy. The Look Book Squad had set up a massive white backdrop on the corner. Like a spider awaiting its prey, Larocca lurked nearby for sartorial ridiculants. But like a sunglassed snow leopard, she proved elusive, sliding out of the camera's field of vision. After minutes of being nice (the longest I've ever gone), she agreed to be interviewed. Why? She's got a book to plug! It's coming out on Sept. 3!