Who: Style director at Harper's Bazaar.
Why we love her: As a style mix master and an industry insider, she's a constant source of inspiration (outfit and otherwise). Her résumé speaks for itself — a stylist's assistant alongside Lori Goldstein, three years as senior market editor at Teen Vogue — and so does her style. Her job is traveling the globe sourcing major trends and must haves, so it's only natural that Joanna has the personal styling skills to go with it.
Key pieces: She's eclectic but with a posh edge. In her arsenal: fur layers, moto jackets, leather miniskirts and pants, and always an It bag and a red lip.