'Photojournalism is about education and positive change.'
Brent Stirton is a photo journalist. His subject matter spans humanitarian subjects, wars, environmental issues and pretty much over the entire globe.
His photos aim to tell stories, real ones, they may not be pretty but they shockingly honest portrayals of often hidden worlds.
You can often find his work in the National Geographic, but if you have the time peep at his website, learn, and be amazed.