You can view the other posts in this series by following the links below:
Part 1, Part 2, Part 3, this is Part 4
James Nachtwey fights XDR-TB
James Nachtwey fights XDR-TB Photojournalist James Nachtwey sees his TED Prize wish come true, as we share his powerful photographs of XDR-TB, a drug-resistant strain of tuberculosis that's touching off a global medical crisis. Learn how to help at http://www.xdrtb.org
Kristen Ashburn's photos of AIDS
Kristen Ashburn's photos of AIDS In this moving talk, documentary photographer Kristen Ashburn shares unforgettable images of the human impact of AIDS in Africa.
Nathan Myhrvold: Cooking as never seen before
Cookbook author (and geek) Nathan Myhrvold talks about his magisterial work, "Modernist Cuisine" -- and shares the secret of its cool photographic illustrations, which show cross-sections of food in the very act of being cooked.
Rachel Sussman: The world's oldest living things
Rachel Sussman shows photographs of the world's oldest continuously living organisms -- from 2,000-year-old brain coral off Tobago's coast to an "underground forest" in South Africa that has lived since before the dawn of agriculture.
Ryan Lobo: Photographing the hidden story
Ryan Lobo has traveled the world, taking photographs that tell stories of unusual human lives. In this haunting talk, he reframes controversial subjects with empathy, so that we see the pain of a Liberian war criminal, the quiet strength of UN women peacekeepers and the perseverance of Delhi's underappreciated firefighters
Beverly + Dereck Joubert: Life lessons from big cats
Beverly + Dereck Joubert live in the bush, filming and photographing lions and leopards in their natural habitat. With stunning footage (some never before seen), they discuss their personal relationships with these majestic animals -- and their quest to save the big cats from human threats.