PDN thanks the sponsors of PDN’s 30 for their support of this issue and our PDN’s 30 educatioal programs Special thanks to American Society of Media Photographers, who are giving one-year merit memberships to each of this year’s 30. We would also like to thank the following people for their help in finding the photographers selected for this year’s PDN’s 30: Vince Aletti Chris Anderson Dave Anderson Simon Bainbridge    British Journal of Photography Tony Bell, Observer Picture Desk Amy Berkley, Field & Stream Phil Bicker, The Fader Jigisha Bouverat, TBWA\Chiat\Day Joan Brookbank, Merrell Publishers Paul Buckley, Penguin Group USA Maryann Camilleri, Magenta Foundation Clinton Cargill and Kathy Ryan,    The New York Times Magazine Brian Clamp, ClampArt Joerg Colberg, Conscientious.com Jasmine DeFoore, Redux Pictures Leslie De La Vega, Time Stacey DeLorenzo, Glamour Tracy Doyle, Interview magazine Natasha Egan and Karen Irvine,    Museum of Contemporary    Photography Michael Foley, Foley Gallery Jason Fulford Esin Goknar, Condé Nast Traveler David Alan Harvey Sarah Hasted and W.M. Hunt,    Hasted Hunt Gallery Todd Hido Darius Himes, Radius Books Cory Jacobs,    Modern Painters and    Culture+Travel Yunghi Kim Amy Koblenzer, Gourmet Teru Kuwayama Whitney Lawson, Travel + Leisure Maren Levinson, RedEye Represents Amanda Marsalis Nadja Masri, GEO Paul Moakley, Newsweek Ute Noll, on-photography.com Martin Parr Gus Powell Kelly Price, Polaris Images Karen Probasco, Magnum Photos Andy Ryan Andrew Rowat Andrea Smith, Aperture Kate Stone, Dwell Mary Virginia Swanson Sara Terry, Aftermath Project Denise Wolff, Phaidon Press