To survive in this business, you've got to have more than talent. You have to be shrewd, savvy, determined—and a crazy-hard worker.

Like Alexander Wang, the designer It-boy turned retail mogul turned leader of one of the world's most culturally significant fashion houses. Or Karlie Kloss, the model who recently made news out of a haircut--and a mini-business out of her health-conscious cookie recipes. Then there's Grace Coddington, the 71-year-old stylist whose memoir is the only thing anybody's reading.

Wang, Kloss, Coddington, and 47 more exceptional people make up 2013's Fashionista 50–our list of the most influential members of the New York fashion industry. To compile the list, we used our own knowledge of the industry combined with advice from inside sources. To be considered, candidates had to live and work in New York for most of the year. (To see 2011's Fashionista 50, click here.)

Let us know what you think: You’ll find the entire Fashionista 50 list below. Click on the person’s name to read a full bio. And if you really want to click through the whole slideshow, you can do so here.

Designers

Alexander Wang 
Marc Jacobs 
Lazaro Hernandez and Jack McCollough, Proenza Schouler 
Oscar de la Renta 
Jenna Lyons, J.Crew 
Humberto Leon and Carol Lim, Kenzo and Opening Ceremony 
Billy Reid

CEOs and Investors 

Andrew Rosen, Theory 
Shana Fisher, High Line Venture Partners 
Aslaug Magnusdottir, Moda Operandi 
Robert Duffy, Marc Jacobs 
James Gardner, Createthe Group 
Mark Lee, Barneys New York

Editors 

Anna Wintour, Vogue 
Joanna Coles, Cosmopolitan 
Deborah Needleman, T 
Mickey Boardman, Paper

Stylists 

Grace Coddington 
Carine Roitfeld 
Lori Goldstein 
Karl Templer 
Kate Young 
Fabien Baron

Buyers and Retail Fashion Directors 

Taylor Tomasi Hill, Moda Operandi 
Jen Mankins, Bird 
Tomoko Ogura, Barneys 
Treena Lombardo, Shopbop 
Claire Mazur and Erica Cerulo, Of a Kind

Photographers 

Craig McDean 
Steven Meisel 
Terry Richardson
Inez van Lamsweerde and Vinoodh Matadin

Personalities/Muses 

Bryan Boy 
Karlie Kloss 
Leandra Medine, The Man Repeller 
Emily Weiss, Into the Gloss 
Erika Bearman, Oscar de la Renta 
Aliza Licht, Donna Karan

Writers 

Cathy Horyn, New York Times 
Bridget Foley, WWD 
Amy Larocca, New York

Behind the Scenes 

Gayle Dizon, Dizon Inc. 
Gucci Westman Neville, Revlon 
Steven Kolb, CFDA 
Mitch Grossbach, CAA 
Nicky Balestrieri, ExtraExtra Creative 
Michael Harper, Into the Gloss 
Robert Burke, Robert Burke & Associates 
Ed Filipowski and Julie Mannion, KCD 
Sylvie Picquet Damesme and Pierre Rougier, PR Consulting