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"Get me Demarchelier!" French icon Patrick Demarchelier is just one of 12 photographers who topped our list of fashion's most important shutterbugs to know. Click through now, and you'll meet them all.
Annie Leibovitz
HOMEBASE: New York, New York
KNOWN FOR: Perhaps one of Leibovitz's most prominent photographs is John Lennon and Yoko Ono's naked Rolling Stone cover (taken the day Lennon was murdered)—a testament to her talent of shooting celebrity portraits. As photographer Juergen Teller once said, "her photographs all possess this smooth sheen," nodding to her use of color and complex backgrounds.

CAN BE FOUND SHOOTING: Vogue and Vanity Fair editorials and covers, Disney's dream portraits
Inez van Lamsweerde and Vinoodh Matadin (Inez and Vinoodh)
HOMEBASE: New York, New York (via Amsterdam, Netherlands)
KNOWN FOR: The Dutch duo's notoriety began increasing in the mid-1990s after they created a niche for themselves with their prowess for glossy celebrity portraits and rich fashion editorials. The weirder the pose, the better.

CAN BE FOUND SHOOTING: Balmain, Miu Miu, Chloé
David Sims
HOMEBASE: Cornwall, England
KNOWN FOR: Sims first rocketed to high fashion acclaim in the early 1990s thanks to his minimalistic backgrounds, flat studio lighting and skill for shooting models in movement.

CAN BE FOUND SHOOTING: Proenza Schouler, Jil Sander, Louis Vuitton
Juergen Teller
HOMEBASE: London, England (via Erlangen, Germany)
KNOWN FOR: Some of Juergen's most famous and recognizable work has been with Marc Jacobs, and he's known for his onboard flash and overexposed style. He's also one of the few major photographers today who chooses not to retouch his photographs following development.

CAN BE FOUND SHOOTING: Yves Saint Laurent, Vivienne Westwood, Céline
Mario Testino
HOMEBASE: London, England (via Lima, Peru)
KNOWN FOR: Testino, one of fashion's most in-demand photographers, got his start in the 1970s by shooting up-and-coming models' portfolios for an extremely low rate, and hasn't stopped snapping since. Now, you can easily recognize his campaigns by their highly polished appeal, stunningly bright light and and casual styling.

CAN BE FOUND SHOOTING: Vogue editorials and covers, Burberry, Chanel
Mert Alas and Marcus Pigott (Mert and Marcus)
HOMEBASE: London, England
KNOWN FOR: Under the working name "Mert and Marcus," this photography duo has been known for their shots of powerful, sophisticated women since 1995. This standard is true: each and every shot features a gorgeous woman (celebrity or model) in a super-strong pose. Plus, they shot Kate Moss' Playboy cover. Case closed.

CAN BE FOUND SHOOTING: Calvin Klein, Gucci, Versace
Nick Knight
HOMEBASE: London, England
KNOWN FOR: Known for showcasing beauty (often, beauty campaigns) in untraditional campaigns, Knight made his first foray into photography in the 1980s and has since tackled editorial and advertising projects for A-list clients like Alexander McQueen, Calvin Klein and Christian Dior.

CAN BE FOUND SHOOTING: Swarovski, Lancôme, Shiseido
Patrick Demarchelier
HOMEBASE: New York, New York (via Le Havre, France)
KNOWN FOR: Forever immortalized in The Devil Wears Prada ("I've got Patrick!"), Demarchelier's work is some of the most esteemed and beautiful in the business. And just a casual detail: he was named Princess Diana's official photographer beginning in 1989.

CAN BE FOUND SHOOTING: Many, many magazine editorials and covers (Lucky, Glamour, Vogue, Rolling Stone and Vanity Fair among them)
Steven Klein
HOMEBASE: New York, New York
KNOWN FOR: Klein's high-profile photography features darker shades, obscure poses and mysterious themes. Much like Annie Leibovitz and Tim Walker, he also tends to prefer more ornate sets.

CAN BE FOUND SHOOTING: Balenciaga, Alexander Wang, Calvin Klein
Steven Meisel
HOMEBASE: New York, New York
KNOWN FOR: One of the most iconic photographers of all time, Meisel has been shooting everything from magazine editorials to fashion houses' campaigns since the 1980s. He shot his pal Madonna in her 1992 book Sex, and helped everyone's favorite supes (Kate Moss, Christy Turlington, Naomi Campbell, etc.) skyrocket to supermodeldom.

CAN BE FOUND SHOOTING: US and Italian Vogue, Louis Vuitton, Prada
Terry Richardson
HOMEBASE: Los Angeles, California
KNOWN FOR: Of all the photographers profiled here, Terry's style is perhaps the most NSFW. His photos are immediately recognizable, thanks to his affinity for nudity and stark white backgrounds, as well his habit of shooting celebrities using instant film cameras or in mundane situations.

CAN BE FOUND SHOOTING: GQ and Harper's Bazaar editorials and covers, models' lookbooks
Tim Walker
HOMEBASE: London, England
KNOWN FOR: After shooting his first fashion story for Vogue at the tender age of 25, Tim's whimsical and fantastical sets, locations and styling started drawing Annie Leibovitz comparisons. All his images tend to exhibit a theatrical and magical quality.

CAN BE FOUND SHOOTING: Mulberry, Valentino, Dior