Peter van Agtmael, A helicopter comes to land on an impromptu helipad built into the side of the mountain at the outpost of Aranas, Nuristan, Afghanistan, 2007 © Peter van Agtmael/Magnum Photos

Peter van Agtmael, Living quarters at Camp Liberty, a massive American base in west Baghdad, Baghdad, Iraq, 2010 © Peter van Agtmael/Magnum Photos

Ruth Gruber, Eklutna woman reading Life Magazine, Hooper Bay, Alaska, 1941-43 © Ruth Gruber

Ruth Gruber, Refugee families awaiting forced deportation and transfer to prison ships at Haifa Port, July 18, 1947 © Ruth Gruber

”The Pleasures of Good Photographs” by Gerry Badger. Published by Aperture

”From Here to There: Alec Soth’s America” by Alec Soth. Published by Walker Art Center

Abelardo Morell, Camera Obscura: View of the Brooklyn Bridge in Bedroom, 2009 © Abelardo Morell. Courtesy of Bonni Benrubi Gallery

Viviane Sassen, POP Magazine, London, Fall/Winter 2009/2010. Styling: Vanessa Reid, Model: Kinga Rajzak © Viviane Sassen, Courtesy of Motive Gallery Amsterdam

Adrees Latif/Reuters, Residents evacuating through flood waters dodge an Army truck carrying relief supplies for flood victims in Pakistan's Muzaffargarh district in Punjab province August 11, 2010. The 2010 Pakistan floods left one-fifth of Pakistan, about the size of England, underwater and caused heavy destruction to property and infrastructure. The floods affected the lives of 20 million while killing nearly 2000. © Adrees Latif /Reuters

Adrees Latif/Reuters, Marooned flood victims looking to escape grab the side bars of a hovering Army helicopter which arrived to distribute food supplies in the Muzaffargarh district of Pakistan's Punjab province August 7, 2010. The 2010 Pakistan floods left one-fifth of Pakistan, about the size of England, underwater and caused heavy destruction to property and infrastructure. The floods affected the lives of 20 million while killing nearly 2000. © Adrees Latif /Reuters

Elliott Erwitt, New York City, 1974 © Elliott Erwitt/Magnum Photos

Elliott Erwitt, Santa Monica, California, 1955 © Elliott Erwitt/Magnum Photos